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AC STAG QBOX Basic Installation Manual

1. rH r eee Q aT SPAS USGS G8 Q Pin No 2C in ORANGE STAG 4 Q BOX connector STAG Pin No 3C in ORANGE GREEN STAG 4 30x PLUS STAG 4 Q BOX connector H A H Ras CO Pin No 3B in YELLOW BLACK STAG 4 Q BOX connector Pin No 2B in STAG 4 Q BOX connector Fig 2a Wiring diagram for STAG 4 QBOX PLUS connection to OBD interface AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 4 of 44 1 3 Semi sequential control PETROL INJECTORS LPG INJECTORS BLUE_RED 12V YELLOW YELLOW GREY YELLOW BLACK BLUE_RED 12V GREEN GREY GREEN BLACK BLUE_RED 12V RED GREY com rowuoaimMmsd BLUE_RED 12V BLUE GREY BLUE BLACK Fig 3 Semi sequential control layout diagram 1 4 Full group control PETROL INJECTORS LPG INJECTORS BLUE_RED 12V YELLOW YELLOW GREY BLUE_RED 12V GREEN GREY GREEN BLACK LI3 E u BLUE_RED 12V RED GREY com roAa
2. Gas pressure bar LPG CNG pressure value the difference in the pressure regulator pressure and the suction collector pressure MAP pressure bar pressure inside the suction collector absolute pressure value Injection time ms petrol injection time Petrol 1 Petrol injection time for Injector 1 Petrol 2 Petrol injection time for Injector 2 Petrol 3 Petrol injection time for Injector 3 Petrol 4 Petrol injection time for Injector 4 AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 15 of 44 Ac Gas injection dose ms Gas injection time Gas 1 Gas injection time for Injector 1 Gas 2 Gas injection time for Injector 2 Gas 3 Gas injection time for Injector 3 Gas 4 Gas injection time for Injector 4 Gas temperature C LPG temperature at the pressure regulator output Reducer temperature C liquid temperature at the reducer Internal temperature C internal temperature in controller Lambda 1 voltage V voltage at the lambda probe 1 Current type oxygen sensor 1 mA current in the wide band probe Lambda 2 voltage V voltage at the lambda probe 2 Battery V voltage at the cont
3. STAG m Aogas Systems STAG 4 QGBOX BASIC STAG 4 QBOX PLUS Controller User Manual information contained in this manual is also available in the diagnostics software help system and at the www ac com p Website Version 1 5 2014 05 09 Manufacturer AC Spotka Akcyjna 15 181 Biatystok ul 42 Putku Piechoty 50 Poland phone 48 85 7438117 fax 48 85 653 8649 www ac com pl e mail autogaz ac com pl AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 1 of 44 Ac Table of contents lC ontroller MSTA ANON sessen E ENEE EEEE ETENE EEEn 3 1 1 Layout diagram STAG 4 QBOX BASIC ssssssssssensssssssseceressssssseccresssssssecceeessssssseceeesssssssees 3 1 2 Layout diagram STAG 4 QBOX PLUS 2 ccccccccccceseessseseecccccsseeeesseeeccceessaeeesseseeeees 4 Lo ed COMIC TE Al CONE O li ate aracraasacscancaarcenuawar sunete EEE E none suncnes 5 tA FOl COU COMO oc trscnscetectaecerte oe E E E sadeatedapsenctesseeteaeasvace 5 1 5 Mounting the controller STAG 4 QBOX oo ccccccccccecccessssseeeceeeeeseasseseeeeeeeeesaeaeseeeeeess 2 M6 ele Cuon Or Presse Te OE e A N S 5 EES e eE E S OZ AIC A EE E AA ANE E E 6 2 The AC STAG diagnostic program ccccccccccccsseessssseccccccsaeee
4. Open circuit or fault of the specified gas injector Low gas pressure Gas pressure dropped or kept below the allowed low limit within the specified time High gas pressure Gas pressure 2x higher than the operating pressure for 60 seconds usually associated with reducer problems Supply voltage too low Controller supply voltage decreased below 9 V usually associated with a failing battery Gas temperature sensor missing Disconnected or disrupted circuit of the gas temperature sensor Reducer temperature sensor missing Disconnected or disrupted circuit of the reducer temperature sensor Gas temperature sensor circuit shorted Gas temperature sensor shorted to vehicle grounding Reducer temperature sensor circuit shorted Reducer temperature sensor shorted to vehicle grounding Injector supply circuit failure Controller s circuit for injectors supply failed Solenoid valve supply circuit failure Overloaded or defective circuit or solenoid supply Solenoid valve missing Disconnected or disrupted circuit of the solenoid supply Peripherals supply circuit failure Overloaded circuit of peripherals supply PS 02 sensor WPG H gas level indicator Connection with the switch failed LED 400 LED 401 switch not connected Communication with the switch lost Connection with LED 400 LED 401 switch interrupted AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in
5. IGNITION COIL O RED BLACK IGNITION SWITCH PETROL LPG SWITCH WHITE GREEN BLACK WHITE GREEN BLACK INTERFACE Bluetooth Oan Bbhetooti as INERFACE RS 232 or USB LI 1 LI 4 LPG or CNG INJECTORS BLUE RED 12V GREY YELLOW BLUE RED 12V GREY GREEN BLUE RED 12V GREY RED BLUE RED 2V GREY BLUE a o DIAGNOSTIC CONNECTORS 3 EE STAG STAG 4 BOD PLUS ATTENTION For a detailed description of connecting to OBD refer to the controller connection and programming manual Z cze OBD 00000000 00000000 i K line CAN ISO 15765 i j 1S0 14230 BLACK ORANGE GREEN YELLOW BLACK ORANGE one an WATER TEMPERATURE SENSOR CT 04 2K GAS OUTPUT WATER REDUCER GREY VIOLET VIOLET BLACK VIOLET a ATTENTION Proper fuse needs to be placed Chose the proper type
6. Pressure Bar Ea Phone WWW e mail eae 1 06 _ E E o MAP 1 01 7 Car info Inj time dose ms P1 0 00 M G1 0 00 Carmaker Model P 9 00 FG 000 F Year fo Engine code P3 0 00 GS 0 00 M Capacity cm3 fo A Engine power kW fo A P4 0 00 i G4 0 00 v FPFF F IN Mileage km fo A Temperature C ry Gas 12 M o Gas installation _ Red 37 iv Internal 39 M Reducer Po Jet diameter mm 0 0 t Other V mA ae Lambda 1 7 55 M Battery 12 35 M RPM RPM w RPM 0m Engine load ia 7 Status Waiting For gas _ STAG 4 BOM PLUS ver 2 1 1 33 1 0 2014 04 28 15 5316 Fig 8 Parameters window Car info AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 8 of 44 Ac 2 2 AC STAG version After the diagnostic application startup the version info is presented on its top bar the examples figure 5 8 present version 0 15 7 2 3 Main menu The main menu consists of the following options Port options may be used to select a COM port set up the communication link terminate communication with the controller Window options may be used to open program screens such as oscilloscope monitor parameters monitor ISA2 reader OBD if th
7. this document in particular photographs drawings illustrations trademarks etc Page 42 of 44 Ac 4 3 Automatic calibration of LPG level indicator The automatic calibration of LPG level indicator should be carried out when an empty tank is being filled with gas The indicator type should already be set but if necessary the procedure itself may change its type e g from ascending to descending The calibration procedure is as follows Press and maintain the switchboard push button Switch off the ignition switch during to three seconds after pressing push button Depress the button when the switch initiates level indicator calibration Process of calibration is signalized on the LED in form of continuously increasing gas level When the tank filling is over switch on the ignition switch thus terminating the calibration procedure Successful calibration is signaled by smooth ascending followed by smooth descending of the gas level indication on the LED line from fuel reserve to maximum fuel level and back twice In the case of calibration failure the level indication on the LED line will change five times from reserve to maximum 4 4 Acoustic signals The controller may emit the following acoustic signals Three beeps if it had to switch over to petrol because of a too low level in LPG tank Three short beeps and one long beep in case of a controller error Two short beeps and one long beep each time t
8. 2 6 2 8 The above rough values may in some cases not correspond to actual values 2 The AC STAG diagnostic program 2 1 Controller computer connection Using a RS USB or Bluetooth link connect the vehicle installed STAG 4 QBOX BASIC controller with a PC computer on which the Ac Stag diagnostic program is to be run Turn the vehicle ignition switch ON to supply the controller with power before launching the program This step is required since no communication with the controller is possible while it is in sleep mode into which it is automatically turned about 10 minutes after its power is disconnected As soon as the program is started the controller links with it provided the correct COM serial port is selected Successful communication is confirmed by the Status No ignition switch Status Waiting for gas Status Petrol or Status Gas message displayed at the bottom left corner of the program screen Parameters window and tabs are presented on figures 5 8 If you get the Controller Error message and No connection appears in the lower left corner of the screen select a different COM port from the Port menu at the top of the screen AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations
9. When 2 3 of the suggested area on gas and petrol map is acquired button El for multiplier adjustment function is activated The operation modifies the multiplier based on a deviation between the recorded maps for petrol and gas injection If map differences are minor the multiplier is not modified AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 25 of 44 fos 2 pov LES fep feel pt Multiplier 7 2 8 8 u 1 e qe 16 ao Inj time ms Multiplier 0 2 4 6 8 10 12 14 16 18 20 22 24 Inj time ms Fig 22 Multiplier map Operation of the multiplier adjustment function AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 26 of 44 2 10 RPM correction map In the RPM correction tab an additional correction map is displayed to supplement the multiplier map Parameters Autocalibration Errors Maps Recorder Diagnostic l Multiplier RPM correction Petrol portion Gas temp corr Red temp corr Gas press corr B G
10. trademarks etc Page 6 of 44 REAC STAG 0 15 7 Port Window Language Tools Parameters Autocalibration Errors Maps Recorder Diagnostic Help 4 Car parameters Gas controller settings Advanced settings Car info Eng i nep arameters Number of cylinders Engine type Source of RPM signal Sumber of cyl per coil RPM signal RPM signal filter 4 cylinders Standard Ignition Coil ki single coil 25 M r Sensors and actuators Lambda sensor 1 Lambda sensor 2 voltage Sensor not connected Advanced settings Injection type Inj control type Standard Standard lO x Monitor Pressure Bar Gas 1 06 M MAP 1 01 M Inj time dose ms P1 0 00 G1 0 00 P2 0 00 M G2 0 00 P3 0 00 G3 0 00 m P4 0 00 G4 0 00 FFFF Temperature C Gas 12 M Red 3f iv Internal 39 F Other V mA Lambda 1 255 M Battery 1236 F RPM 0r Engine load E 5tatus Waiting For gas 5T45 4 QBO PLUS ver 2 1 1 33 1 0 2014 04 26 15 53 16 Fe AC STAG 0 15 7 Port Window Language Tools Switch over to gas LPG Switch over threshold he padi pa agi po zdro Fuel type Switch over time Reducer filling time Switch over temp Fig 5 Parameters window Car parameters Help Parameters Autocalibration Errors Maps Recorder Diagnostic Car parameters Gas contr
11. LPG Reducer filling time delay between opening solenoid valve and gas injectors The function used to pre fill the system with gas Switch over temp time after starting the engine when the controller can switch to LPG Cylinder switch over time elapsing between the switching of subsequent cylinders E g with the setting at 200 ms for a 4 cylinder engine the switching from petrol to LPG or LPG to petrol will take 4 200 ms This works regardless of whether the petrol injection system is the so called full sequence or not Setting the switching time to 0 will result in the switching from petrol to LPG or vice versa and turning on and off of the solenoid valves without any delay Hot start if checked warm engine may be started directly from LPG Check that option also in vehicles equipped with the Start Stop function e g Fiats Switching to gas sound checking the option will result in a beep upon switching to gas fueling Petrol switch over parameters related to switching from petrol to LPG Min gas RPM min rpm when lower the controller will switch over to petrol Max gas RPM engine rom when higher the controller will switch to petrol Pressure error delay amount of time with the LPG pressure lower than minimal before the controller switches to petrol and reports LPG pressure too low AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distrib
12. and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 38 of 44 Ac 3 STAG 4 QBOX controller programming The STAG 4 QBOX controller may be programmed using the acquired petrol map and the gas map The procedure Auto calibrate the controller Acquire petrol map B Acquire petrol map G Check deviations between both maps 3 1 Auto calibration Prior to starting the auto calibration start the engine and wait until the lambda probe begins to work During the auto calibration the engine should work at idle run do not increase rom switch off air conditioning and lights and do not turn the steering wheel as this may cause errors during the auto calibration During the auto calibration watch carefully petrol and LPG injection times If LPG injection times are shorter than petrol injection times the injector nozzles may be too large and should be replaced with smaller diameter ones When auto calibration is completed the multiplier map will be preset The multiplier s value for this point should be between 1 2 and 1 8 if the value is greater than 1 8 longer times of petrol injection i e greater load and high rom may cause overlapping of injection times i e one LPG injection will begin before the previous one ends looped injections In such
13. any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 20 of 44 Upon error detection the controller records its conditions i e operating parameters of the gas system including pressure gas temperature reducer temperature engine rom manifold negative pressure petrol injection pulses and gas dose Such data is normally called a frozen frame of the error and allows analyzing and detecting problems in gas system operation Gas controller errors and messages Actual E No gas injector 4 0 Pressure Bar MAP 0 54 Pressure Bar Gas 1 34 Temperature C Gas 23 Temperature C Red 40 Temperature C Internal 40 RPM RPM RPM 908 Other Y mA Battery 12 Inj time ms Petrol 1 6 44 Inj time ms Petrol 2 6 44 Inj time ms Petrol 3 6 44 Inj time ms Petrol 4 6 44 gas Inj Dose ms Gas 1 7 92 Gas Inj Dose ms Gas 2 7 92 Gas Inj Dose ms Gas 3 7 92 as Inj Dose ms Gas 4 7 92 Fig 17 Frozen fame of injector error 2 8 2 Gas controller message Messages are prompts that are not necessarily related to detection of events limiting or preventing the operation of the autogas system but signal the required verification of the configuration Unlike the errors message prompts are displayed in blue The controller can generate the following messages Description in AC STAG a
14. engine is started on petrol and switches to autogas when the set parameters are achieved Normal blinking twice per second no acoustic signals AUTO mode the engine is started on petrol and switches to autogas when the set parameters are achieved The system switches the engine to gas fueling The state may continue for up to 10 seconds depending on engine working parameters at the moment and controller settings Fast blinking 4 times per second with acoustic signals EMERGENCY mode system error prevents gas fueling e g empty gas tank LPG installation fault the engine runs on petrol Continuous light in white GAS mode the engine is supplied with autogas Continuous light in red operation on gas low fuel level If the controller is connected to the LED 401 switch additional functions are available The user can adjust LED brightness 4 brightness levels if automatic LED brightness is Off The user can adjust the volume of buzzer installed inside the switch The switch can be installed in any position to allow comfortable control of gas level indication and the reference position is the position of the buzzer Automatic detection of the connected switch If LED 401 is connected the application also shows LED 401 AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within
15. of sensor in software VIOLET Vv GREY VIOLET VIOLET BLACK ECU ECU 7 LAMBDA SENSOR 2 I I l l l l VOLTAGE l I CL catalytic converter i l l l wideband CURRENT before before a ee me es a aa as cha EE a SSS SS SS SS SS SS ew ATTENTION Description and connection diagram of UEGO sensor Is located In the help section of controller configuration program into the socket RED BROWN BLACK gt WHITE n RED i ke O N WPG BATTERY BLACK WHITE LPG LEVEL SENSOR WPGH ORANGE SLACK BLACK ahem BLUE BLACK PEAN ELECTRO VALVE 2 MULTIVALVE TO INLET MANIFOLD LPG or CNG GAS FILTER CED OUTPUT PRESSURE and TEMPERATURE SENSOR Fig 2 STAG 4 QBOX PLUS controller installation layout diagram ISO 9141 PETROL INJECTORS S L1 YELLOW ae 4 YELLOW BLACK a i as g K GREEN T i GREEN BLACK Q R Oo LI3 a L RED a a RED BLACK E Li4 S c BLUE SE A BLUE BLACK 7 FRONT VIEW 1 9 16 ORANGE ORANGE GREEN FRONT VIEW YELLOW BLACK BLACK ISO 14230 ISO 15765 Pin No 15 in OBD connector lt Pin No 7 in OBD connector it m Pin No 14 in OBD connector lt Pin No 6 in OBD connector 4 v lt gt gt
16. with green points Having collected sufficient number of green points the map will be drawn with a continuous green line If the controller is set properly the multiplier characteristics selected properly the petrol and the LPG maps should match If the maps do not match the multiplier characteristic should be corrected at the points where the maps do not match the lower axis of co ordinates for injection times If the LPG map is collected with the PC connected and the diagnostic software running it is possible to immediately AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 39 of 44 Ac correct the multiplier characteristics when the collected green points do not match with the petrol map It is even strongly recommended to use the PC in this way as if the multiplier characteristics differ strongly from the required ones the controller starts to switch over and in the extreme case can activate the check signal lamp When correcting the multiplier characteristics make the points on the LPG map match with the petrol map Once both maps match the characteristics are properly set 3 4 Checking if maps match verification of deviations Having collected the petrol and LPG maps both map
17. 0 00 P2 2 91 G2 0 00 P3 2 92 V G3 0 00 F P4 2 92 V G4 0 00 F PPP Temperature C c Gas 24 Iv Red 52 Iv Internal 36 Iv 45 Lambda 1 0 03 F ae Battery 13 46 M 3 RPM RPM amp 29 RPM 680 M 2 Engine load a 15 ae a al Ps 05 oO O 10 6 20063064006 50 60 70 60 90 100 110 120 130 140 150 160 170 180 190 200 ORR Status Petrol 5746 4 QOBOx PLUS wer 2 1 1 33 1 0 2014 04 26 15 53 16 Fig 16 The view of Errors tab AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 19 of 44 Ac 2 8 1 Errors of the gas controller Detection of events that restrict or prevent correct operation of the autogas system is indicated by messages with descriptions in red Section Active errors lists the codes of current faults detected by the controller If the cause of the fault is eliminated the entry is moved to the Error records section In other words this means that a defect had been detected but it is not currently active A Delete button for erasing recorded controller errors from the memory is located in the bottom part of the Errors tab below the Error records section The following errors may appear during operation Description in AC STAG application
18. 4 a a a 69 6 6 ipp o L mn Q3 2z oo a ho ho ho ho o o zm o Fig 35 ISA2 correction map It is allowed to selectively disable autoadaptation at particular engine operating ranges where autoadaptation is not desired In order to disable such area it has to be selected and mouse right click must be then performed It results in opening a context menu with adaptation lock and adaptation unlock options Disabled areas have gray correction values 2 20 OBDII EOBD reader STAG 4 QBOX PLUS is equipped with an integrated reader of parameters and faults based on the OBDII EOBD interface It is not necessary to connect an external adapter all required circuits are integrated with the controller board The tool supports the following standards SO 15765 ext std 250 500Kbits commonly referred to as CAN ISO 14230 5Baud Fast init SO 9141 commonly referred to as K line The reader is initiated by selecting the OBD reader option on the gas settings tab If the controller operates in auto mode it will attempt to connect to the OBDII EOBD diagnostic system upon activation of the ignition switch AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in part
19. 4 ZW TSA AU OAC A O r e a E E E E E S 34 2 19 1 TS AZ COn cUn MAP enee E E A EER E EEE 36 piv OBDITEOB Die IIe e A A E a E eer 36 Zo C ONO TUNG AUS a aiaapiee net ouusee dune wabee uaa staapenn cetepnaeibowndeweteneorsieanienstapsasdies 38 3 STAG 4 QBOX controller programming ccccceeeeesseccccececaeeeseeecceceeeeaeessseeeceeeeesaaaenseseeeeeeeaags 39 PEACE eeu euacsaenns creucee 39 3 2 Collection of the petrol injection map with petrol petrol Map ee eeeeeceeeeeeeeeeeeees 39 3 3 Collection of the petrol injection map with LPG LPG map ee eeeceeceeeeeeeeeeeeees 39 3 4 Checking if maps match verification Of deviations cc ceeeeeeccccceceeeeeeeeeeceeseeeeaeeeeees 40 Dads Connel tamia SSN eioen E OER EEEE r Ena 40 2O LP PO temperature COOC OI sengene er e R etsomaaatesteolegsore 40 4 LED switchboard operation and acoustic signals User Manual ccccccccssesssseceeeeeeeeeeeeees 41 4l LEDS OOS WITCNO OAL essee E T E 41 4 2 LED 300 401B and LED 401 switchboard nnnnneeesssseseennnssssssseeesssssssssserrsssssssseeerssssss 42 4 3 Automatic calibration of LPG level indicator nseessseoeeesesssseeeerrsssssssscerressssssseerrssssss 43 a a o E I E EE E E E A EE 43 BD PME ney Sar ON O iSe saci cloc oanenbectactasseueseosactddossoeeeescbes 43 IE 0401 ere ME 0 C amp oe 6 S e E E E S 43 I E E EO E E E E A A E E A O E AEE N 44 AC S A all rights reserved Under penalty of law
20. Adtmv BLUE GREY BLUE BLACK Fig 4 Full group control layout diagram 1 5 Mounting the controller STAG 4 QBOX STAG 4 QBOX controller must not be installed in a place exposed to high temperatures and or damp 1 6 Selection of pressure regulator Install the controller according to the layout show in Fig 1 or Fig 2 In a sequential injection system pay attention to select a pressure regulator properly matched to the given car engine power and injector nozzles A pressure regulator that is poorly matched to the car engine power will not be able to provide sufficient supply of gas at large demand fully open throttle and to maintain nominal gas pressure within the system Should gas pressure drop below some preset low threshold the controller will automatically switch to petrol AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 5 of 44 1 7 Selection of injector nozzles Injector nozzles diameter must also be matched to the given car engine power see the table below Power per cylinder is engine power divided by number of cylinders in the engine Nozzle diameter mm reducer pressure 1 bar Power per cylinder range KM 1 7 1 8 11 16 lI ee 2 17 28 ETS 2D vex OA
21. D ISA2 bank 1 a n wn N EPE we PE EREE EAN SEEE EE O Ree n 0O OHOO O OOO O O GO o s oo o o t t tu o o pedeo e o o eo dee p o o o mtume o oo O Oo E N E E gt oo oOo hh hh th Oo 0 Oo Oo a oo o h a amp h th o o o o o o O h h hh h o o o oO oo O OGO O O O O O O O O ee a T a a a a a a aa aa a a T a s o o o oO o oO o oo oo oo o_o 9 op o o o o o o ea a T a e _ o_o o_o o_o a T _ o _o _ _ _ _ _ _o _ _o _ __ QO GO O OGO O OO O O O OO o _o _o_o _o _o_o_ 0 _o_o _ _ n Fig 23 The view on the RPM correction map The RPM correction map forms a plane One axis of the plane represents the petrol injection time ms while the other represents engine revolutions rom The map makes it possible to calibrate the multiplier depending on engine revolutions This is shown In Fig 12 It is possible to enrich weaken the mixture for a defined petrol injection time and revolutions In order to calibrate the multiplier the area which is to be calibrated must be selected by moving the mouse with the left button pressed over this area Another method is to press the SHIFT key and while holding it to select the appropriate area by pressing arrow keys lt Left arrow Up arrow gt Right arrow J
22. Down arrow Having marked the area which is to be calibrated specified actions can be performed by using the combination of the CTRL key and one of the keys below Arrow up higher calibration richer mixture 4 Arrow down lower calibration leaner mixture Pressing the SHIFT key in the course of the multiplier calibration will multiply the required step by 10 The 3D tab seen on the right side of the RPM correction map windows allows activation of a 3D view Return to the classic two dimensional view is made through the 2D tab AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 27 of 44 Parameters Autocalibration Errors Maps Recorder Diagnostic Multiplier RPM correction Petrol portion Gas temp corr Red temp corr Gas press corr B G D ISA2 bank 1 Fig 24 3D map view The 3D view is a spatial display of the two dimensional map You can rotate the 3D map dragging it with the right mouse button Other editing operations may be performed identically as in the 2D map 2 11 Petrol portion map The Petrol portion tab offers configuration of the petrol post injection with simultaneous gas injector control Configuration of petrol post injection is m
23. ED IGNITION gaeat Sgt eI i ty ae aS a 12V SWITCH YELLOW BLACK ff 4 GREY YELLOW ATTENTION I Description and connection diagram S ATTENTION Wt of UEGO sensor is located in the help a A E lt pee GREEN XE Ela BLUE RED Proper fuse needs to be placed section of gece configuration lt Xx Sean into the socket FUSE a GREENBLACK f GREY GREEN GREYBACK o RED S PETROLILPG or CNG GREEN RED R SWITCH jN BROWN re ge fN L BLUE RED Fe BLACK i BLACK 4 12V RED maa D RED BLACK a GREY RED ZS a i AIT E B NOTCONNECTED PG LEVEL SENSOR BATTERY C 1 Aa Erans BUZZER WPG BLACK A Bue o U BLUE BLACK 4 GREY BLUE ORANGE gt nad v warer BLACK gE RED H ESER X pig LPG or CNG l i MULTI VALVE HL ELECTRO VALVE LH CT 04 2K ie RED supply ie E ORANGE BLACK L WHITE GREEN pressure ci m WHITE RED MAP BLACK Sa po CE DA T O millj k WATER Te ouTeuT ml ag cil v LPG or CNG x seri MW REDUCER PIETER PRESSURE and TEMPERATURE SENSOR Fig 1 STAG 4 QBOX BASIC controller installation layout diagram G AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 3 of 44 1 2 Layout diagram STAG 4 QBOX PLUS y BROWN
24. L mode indication of autoadaptation working in an open loop mode AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 35 of 44 o ee 2 19 1 ISA2 correction map ISA2 auto adaptation has a dedicated correction map spread on the axes of RPM and load MAP pressure so the implemented corrections are more natural and precise The map preview is available on the ISA2 tab Parameters Autocalibration Errors Maps Recorder Diagnostic l Multiplier RPM correction Petrol portion Gas temp corr Red temp corr Gas press corr B G D saz bank 1 K a 01 02 OF o4 05 OS OF DS OS 1 11 12 13 14 15 15 17 18 19 2 21 22 23 24 25 t hha Oo o OO OO 0 0 0 2 5 Go DSO 6 3 3 5 ee O O T da d CF et 0 jaN ee 5 hi e ee en a G i ca 4 Gh _ OO 3 3 __ 5 en yy i i eee a a ee _2 _ _4 _ _ 6s GGG Ow th m hm wy BG OD d3 _ _ dh th cht OOO ee o a o Go _ o_o _ Go _ o_o S a g gp p p p p ppe a _ _ _ a 1 a a _ 9 _ pp 2 2 a 0 ppe 5 6 4 6 9 pp 2 _
25. Normal blinking twice per second the engine is started on petrol and switches to autogas when the set parameters are achieved The system switches the engine to gas fueling The state may continue for up to 10 seconds depending on engine working parameters at the moment and controller settings Fast blinking 4 times per second system error prevents gas fueling e g empty gas tank LPG installation fault the engine runs on petrol On the engine runs on LPG Push button for switching from one fuel type to another The controller remembers the last fuel type setting before switching the ignition switch off AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 41 of 44 4 2 LED 300 401B and LED 401 switchboard Fig 39 LED 300 401B LED 401 switchboard LED 300 401B and LED 401 LED switchboard consists of Gas level indicator four diodes in a circular arrangement showing the current gas level in the tank Four green diodes indicate that the tank is full Button with AC logo used for fuel switching and indicate current operating conditions Off PETROL mode indication that the engine is fueled with petrol Slow blinking once per second AUTO mode the
26. a case the controller will display the Too long injection time error message In such case make sure that the Lambda sensor indicates a rich fuel mixture 3 2 Collection of the petrol injection map with petrol petrol map Having finished the auto calibration switch over to petrol and drive the vehicle for app 4 km to collect the petrol map During the collection of the map try to drive without changing gears e g at the 4 gear and in a way making the lambda probe to work i e changing its mode from weak to rich Blue points should appear during the collection of the map To collect the map quicker adjust vehicle load in such a way causing new points to be collected in places which are still empty Collection of maps is performed without participation of the diagnostic software thus can be done with the PC disconnected However collecting the map while the PC is connected and the diagnostic software running is quicker and enables the operator to see what is actually happening to the vehicle When the controller collects sufficient number of points the map will be drawn with a continuous line and the petrol map collection is finished 3 3 Collection of the petrol injection map with LPG LPG map Having collected the petrol map switch to LPG and collect the LPG map in the same way the petrol map was collected The LPG map should be collected in the same road conditions and with similar loads as the petrol map The LPG map is drawn
27. ade on a two dimensional map with an RPM and petrol injection time axes Like on the RPM correction map the cursor shows the engine operation curve point Navigation on the petrol portion map is identical as on the RPM correction map i e cursor keys 7 3 SHIFT and CTRL keys can be used to select map areas and modify their values Parameters Autocalibration Errors Maps Recorder Diagnostic Multiplier RPM correction Petrol portion Gas temp corr Red temp corr Gas press corr B G D ISA2 bank 1 a i eeGs eeGseeee ho wo a i sege 9 3 9 sG sesGss ono MY Y S SN N SY SN S N N N So oOo co oOo ooo oO oO oO oO O s H OO 98 9 98 99 aoao ooo 3 s o oo oo D0 DOK GO s oo o o 3 c Go _ o_o G Ga eoep s ep 3 oS oo oo co co ppp s 3 s O22 _ _ _ _ _ _ _ _ _ _ o No poeoeoospeseses k 4 s LJ 29oooo 3 moo co oO oO oO oO oO oO oOo oO wo p p p p p p o p o b o p p p p ep ep e e e a ue a au _ 9 _ __ o _ 4 _ 4 __ 0 _ o_o s s s i Fig 25 Petrol portion map Map values specify the percentage of petrol while running on gas in a given operating curve point The actual petrol post injection time is based on the map
28. al filtration In case of cars from the U S A correct reading of RPM value can be difficult so this option should be switched on In other cases it should be switched off Lambda sensor 1 Available options Voltage standard voltage probe UEGO UEGO wide band current probe Sensor is not connected no probe Reverse voltage reverse action voltage probe Lambda sensor 2 Available options Voltage standard voltage probe Sensor is not connected no probe Reverse voltage reverse action voltage probe Injection type type of injection used in the car Standard standard indirect injection petrol injectors with no current limit Renix indirect injection system petrol injectors with Renix current limit Inj Control type type of petrol injectors control Standard standardowe sterowanie sekwencyjne Doubling petrol injectors are controlled in pairs i e 2 injectors are controlled from a single channel in the petrol controller The Gas controller settings window lists the following groups of parameters Switch over to gas parameters related to switching from petrol to LPG Fuel type type of fuel in the LPG system LPG or CNG Switch over threshold engine rom required for the controller to switch to LPG For rom set to lt 700 the controller switches to LPG at idle run Switch over time time after starting the engine when the controller can switch to
29. and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 2 of 44 1 Controller installation 1 1 Layout diagram STAG 4 QBOX BASIC INTERFACE Bluetooth seems Omoti oF DIAGNOSTIC i CONNECTORS AL IGNITION al INERFACE t gt i COIL I RS 232 or USB Loi BROWN Chose the proper type of sensor in software VIOLET VIOLET VIOLET BLACK ECU LAMBDA SENSOR before catalytic converter SENSOR wideband PI 1 PI4 LI 1 LI 4 l I I l I I I I I I l I PETROL INJECTORS LPG or CNG INJECTORS a 1 ake B RED BLACK VOLTAGE CURRENT ae Jh a SENSORS SENSOR g lt YELLOW BLUE R
30. bility claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 16 of 44 Gas level is indicated by LED 300 switches with a line of 5 diodes while LED 300 401B and LED 401 indicate it with 4 diodes arranged around the button The minimum level low fuel alarm is indicated by a red LED diode in LED 300 switches In LED 300 401B and LED 401 switches the status is indicated by illuminating the button in red After right clicking on the LED witch view its settings window is displayed Figure 14 Alternatively use the Gas level indicator configuration button on the Gas controller settings tab Gas level indicator x Low Fuel in Jao gt Ba gt En gt PR as level 5 00 Y Settings Gas level sensor type so kahm Characteristics Decreasing Sound level E LED brightness level 4 Buzzer position Lower left corner Auto brightness adjust Active Switchboard type fled 400 Fig 14 Gas level indicator configuration window Basic operations include configuring the type of indicator and setting the voltage values according to which LED diodes will be lit to indicate the gas level on the switch panel chapter 4 3 describes the procedure for automatic setting of threshold voltage values Select the type of gas level sensor and
31. e cold engine The problem occurs in certain vehicle models If necessary set the parameters as follows Max engine temperature threshold should be close to the engine temperature at which jerking stops NOTE Engine temperature threshold influences the time of function operation Always note if the ratio represents a rich fuel mixture for the warmed engine under high load Failure to follow this note may result in engine damage Max rpm threshold should be set by experience so that there is no power drop under maximum acceleration at higher rom and there is a rich air to fuel mixture in open loop conditions Max gas injection time is set when driving on cold engine so that sudden pressing of the acceleration pedal does not cause jerking while keeping the maximum dynamic performance of the vehicle Pre filling system if the option is activated turning the key switch will open the solenoid shortly to prefill the system with gas The Car info window lists the following groups of parameters Gas installation fitter contact details of the installation of a gas fitter Car info car data which was mounted the gas installation Gas installation general information about the components of the gas installation 2 5 Signals ingectors LED switchboard On the right side of the window Fig 5 there are the Monitor windows The Monitor window shows the following signals measured by the controller
32. ed within this document in particular photographs drawings illustrations trademarks etc Page 17 of 44 Ac controller displays a message informing the auto calibration has finished successfully The following messages may appear during the calibration No ignition switch check the connection of the ignition switch High low rpm engine rpm is too low high check the rpm settings No injection pulses Intake manifold pressure too high Unstable engine operation manifold pressure engine rom changes are excessive Check system tightness and make sure air conditioning is off 2 7 Oscilloscope Laan a i Oscilloscope l 5 x Opel Zafira STAG 4 QDO PLUS 2014 02 21 11 51 43 08c 22 zad 22 254 22 oi 4 22 204 22 394 22 414 22 454 PJ m e FLD Fig 15 Oscilloscope screen On each tab except the parameters tab there is the oscilloscope window attached to present the changing monitor parameters described in section 2 5 In the bottom left part there are control buttons with the following functions from the left Start the oscilloscope Stop the oscilloscope Save current oscilloscope display Load saved oscilloscope display file Decrease the number of displayed points only for loaded graphs Increase the number of displayed points only for loaded graphs Display oscilloscope file information data logging start stop total number of stored samples application version contr
33. elected point by 10 units or the entire map if no points are selected Ctrl lt or Ctrl gt change the active point move to the next one When the Shift key is pressed in the map movement speed is multiplied by 10 fast movement When no point is selected the T arrows move the entire map Apart from the multiplier map there are two other maps in the window The blue map represents the petrol injection times with petrol The right axis Collector pressure Bar and the lower axis Injection Time ms relate to this map The map consists of blue points After collecting the data the controller turns these points into a AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 23 of 44 Ac continuous line The same applies to the so called LPG map i e the map of petrol injection times with LPG which is green After the controller collects both maps i e the petrol and LPG maps the Deflection tab becomes active Deflection appears as a red line after pressing button WZ The map window in Fig 19 shows also cursor which position changes vertically depending on the manifold negative pressure and horizontally depending on petrol injection times It is very useful during map collectio
34. en vehicle was parked a longer time at freezing temperatures Active procedure is marked with a red line displayed on the oscilloscope screen and with blinking gas injector icon in the parameters monitor window AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 14 of 44 Ac Petrol portion a set of options to allow automatic modification of petrol share map so that for rom higher than the value set in the minimum rpm field and injection pulses longer than the value set in the minimum petrol injection time field gas injection will be supported with petrol injection pulse equal to the value of the petrol adding time field Pressure release in the course of driving when gas injectors are not controlled e g in the cut off status gas pressure in the gas controller may rise If this option is on when pressure exceeds the set value Switch over threshold the controller will start a procedure to bring it down The procedure is switched off when the pressure drops down to 1 5 bar Pulse frequency parameter controls the frequency of the injectors opening Leaning on cold engine the cold leaning option allows eliminating the effect of jerking as a result of gas overflowing to th
35. evolution Parameter value must be adjusted for correct engine speed readings in the controller Petrol injection pulses In older cars the engine speed brown wires need not to be connected since the controller can calculate current speed from injection pulses When RPM readings are disrupted RPM changes significantly but the engine operation is stable specify the minimum injection pulse time to ensure filtering the extra injection pulses and stabilize the RPM readings RPM signal RPM signal source RPM detection threshold in Volts Set the detection threshold to a value ensuring proper revolutions reading from the controller E g for impulses originating in a petrol engine usually equal app 5 V set the detection threshold to app 2 5 V For impulses Originating from the ignition coil set the threshold to app 7 V Nissan Micra is an exception Its computer ignition impulses equal app 1 4 V in which case the detection threshold needs to be set at app 1 0 V For some Renault Megan models the detection setting needs to be set at app 10 V AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 11 of 44 RPM signal filter Switching on YES and switching off NO of RPM sign
36. ey have been closed Language options may be used to select user interface language version Tools option may be used to update hardware devices setup program settings load stored settings store modified settings restore default factory settings Help options may be used to display info on the program the controller and documentation including this manual To bring up the About gas ECU window select Gas controller info in the Help menu Gas controller info ECU working time Fuel 11H 26M 22 Since last connection OH OM i 0 545 41H 39M 78 Since last connection OH OM 0 Service Events Date Time Code First PC connection 2013 12 05 19 28 45 64260416 First change of settings 2013 12 05 19 29 27 66426416 Lask PC connection 2014 04 17 laSa 4791276 Mod date 1 2014 04 10 10 04 22 1442C29E Mod date 2 e0i4 O4 17 ladsan 1442Cege Mod date 3 2014 04 17 12 50 55 40791276 Mod date 4 2014 04 17 12 56 15 40791276 date 5 2014 04 17 13 14 01 4C791276 Clear errors 2014 04 17 12 59 49 40791276 Other ECU SIM 1101131125040173 Your PC code 47791276 Fig 9 Gas controller info window The Gas controller info window B d Nie mo na odnale r d a odwotania Fig 9 shows the following parameters ECU working time AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and
37. he ignition switch has just been turned on is a warning that the system needs to be inspected Three long beeps repeated every minute is a reminder that the engine is operating in emergency mode 4 5 Emergency start on gas In order to start the engine on gas emergency mode e g when the fuel pump fails position the key in ignition mode then press and hold the button on the switch The LED will be switched on ina continuous light mode and a buzzer sound will be generated When RPM is detected the controller opens the solenoids and the engine is started on gas fuel It is not possible to switch to petrol in the emergency mode The emergency mode is deactivated when the engine is turned off Operation in the emergency mode is indicated with occasional buzzer sounds 5 Technical specifications Power supply voltage 12 V 20 30 Maximum power supply current for a 4 cylinder engine controller 1 QO 12 5 A gas injectors Current load in the sleep mode lt 10 mA Operating temperature range 40 110 C Protection class IP54 AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 43 of 44 Ac 6 Warranty restrictions exclusions Warranty does not cover 1 Damage resulting from in
38. icular photographs drawings illustrations trademarks etc Page 36 of 44 Ae OBD reader Param Value Status Eng Temp s C STFT B1 0 00 LTFT Bi 0 00 0 F PRESS 378 kPa 886 rom Tae connected E Fig 36 OBD2 EOBD reader The reader window can display maximum 6 parameters at the same time Navigation is realized with buttons which are used to scroll through the parameters read via OBDII EOBD For showing or hiding the parameters of OBD reader on the oscilloscope in the application use the button The button opens the parameters configuration window Figure 37 which allows creating any sets of displayed parameters thanks to which it is possible to display a set including only parameters that are required for system calibration such as fuel loop status STFT and LTFT trims results of a wide band oxygen sensor The window displays a set of 96 parameters available in OBDII EOBD standard Parameters unavailable in a given vehicle are grey In order to add or remove a parameter from the reader select it or deselect it in the field on the left side next to its description f OBD reader config Seles W Status Fuel system status Pn LJ Eng Load Calculated engine load value Eng Temp Engine coolant temperature STFT B1 Short term Fuel trim Bank 1 LTFT E1 Long term Fuel trim Bank 14 W STFT 82 Short term Fuel trim Bank 2 W LTFT 62 Long term Fuel trim Bank 2 iF PRESS Fue
39. ions just like on the multiplier chart shown in Fig 11 This correction may be useful if strategy of dosing fuel by computer of the vehicle strongly depends on engine temperature Parameters Autocalibration Errors Maps Recorder Diagnostic Multiplier RPM correction Petrol portion Gastemp corr Red temp corr Gas press corr Bo G D ISA2bank1 KI 507 i l 404 ont il ee T E ab aoe PEE i cs aaa ee 204 104 0 ae 204 a a Be a 3 3 nee re as See _ PEREN O ee a eS a eee ani 40 30 20 10 0 10 20 30 40 50 60 70 80 90 X 40 00 Y 15 00 Reducer temperature C Correction Fig 27 Reducer temperature correction map view AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 29 of 44 2 14 Gas pressure correction map The controller is provided with automatic gas injection time correction based on gas pressure The Gas pressure correction map allows the user to enter manually an additional percentage correction based on gas pressure Entering modifications is just like on the multiplier Parameters Autocalibration Errors Maps Recorder Diagnostic l Multiplier RPM correction Petrol
40. iplier is too high the mixture is too rich In this case lower the multiplier value for the 5 ms injection time in our case If upon switching to LPG the blue marker moves to the right it means the mixture is not reach enough and the multiplier needs to be brought up for given injection times The procedure described above should be performed for a few different injection times starting at the calibration point all the way until heavy load injections You can check the multiplier map e g every 2 ms starting at the calibration point If necessary add a point at the multiplier map to set it more precisely Once the manual setting is complete both maps petrol and LPG should match 3 6 LPG temperature correction If the petrol injection time changes when the LPG temperature is changed in the LPG mode the LPG temperature calibration must be corrected The correction may be made by means of the LPG temperature calibration map see 2 12 However it must be remembered that this operation may be performed if the auto calibration and the multiplier setting while driving have been carried out correctly In order to make the correction in a proper way the car must be started with a cold engine Then beginning with the temperature of switching to LPG the petrol injection time AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way a
41. jection rails resulting from their mechanical properties The procedure having auto calibrated the controller check petrol injection times in individual engine cylinders Turn one gas injector at a time to check cylinders in which the times differ after switching from petrol to LPG If necessary adjust per cent correction factors so that the times do not change after switching to LPG WARNING Use this option as a last resort i e when sure that the installation was performed properly all mechanical issues have been eliminated and injection times variations for given injectors are still present when using LPG Do not ever use injection strip collector pipes of different lengths and then the injectors calibration to accommodate this difference Also never use this option when the system is not in a perfect working condition or when some of its elements have worn out Using this option in a manner not consistent with the above instructions may result in damage to the car Injection sequence Here you can freely configure the injection sequence which petrol injector is to control respective gas injector Reducer temperature sensor pressure regulator temperature sensor type selection Gas temp sensor gas temperature sensor type selection amp xtra injection off threshold petrol injection pulses shorter than the set value will be ignored by the controller gas injection pulses will not be generated for them I
42. l point rom and suction negative pressure of the engine You can rotate the 3D map dragging it with the right mouse button x Fig 30 Mapa gazowa G view 2 17 Map acquistion state In order to monitor the process of map data acquisition the application has been provided with a special petrol map acquisition status preview activated with the State button in B and G map windows The preview of map acquisition status is divided into square sectors which are colored when a respective map section for this area is acquired AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 32 of 44 ms agg EE o us E 2 000 1 00 Fig 32 Gas map acquisition state AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 33 of 44 2 18 Injection time deviation map The D tab allows the viewer to view the difference between Petrol and Gas maps Differences between the petrol and gas injection time maps are expressed as a perce
43. l pressure O MAP Intake manifold absolute pressure i RPM Engine REM Ol Ws Vehicle speed W Tady Timing advance In irTemp Intake air temperature LO MAF MAF air Flow rate iv TP Throttle position W C545 Commanded secondary air status osP Oxygen sensors present O2 51B1 I Tr Bank 1 sensor 1 oxygen sensor voltage she 2 5261 Tr Bank 1 Sensor 2 oxygen sensor voltage she W 02 5351 Tr Bank 1 Sensor 3 W 02 5461 Tr Bank 1 Sensor 4 W 02 5152 Tr Bank 2 Sensor 1 W 02 5262 Tr Bank 2 Sensor 2 oxygen sensor voltage she W 02 5362 Tr Bank 2 Sensor 3 oxygen sensor voltage she W 02 5462 Tr Bank 2 Sensor 4 oxygen sensor wi nee z shi LJ OEC standards OBD standards this vehicle conforms tot W Run time Run time since engine start LJ MIL dist Distance traveled with malfunction indicator lamp W FR Pr Fuel Rail Pressure relative to manifold vacuum W FR PrO Fuel Rail Pressure diesel or gasoline direct inject W O2 WR S1 IY 0251 WR_lambda Equivalence Ratio volta W OZ WR 32 a v OZS2 WR lambda Equivalence Ratio volta W OZ WRISS IY 0253 WR lambda Equivalence Ratio Volta W OZ WR S4 Wiioes4 WR lambda Equivalence Ratio volta W 2 WE 55 iy 0255 WR lambda Equiv ralen ce Ratio volta Select all Deselect all Fig 37 OBD2 EOBD reader configuration ygen sensor voltage she xygen sensor voltage she xygen sensor vol
44. ll or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 40 of 44 Ro gt must be checked and after switching to LPG the petrol injection time should be compared If the petrol injection time value is bigger after switching to LPG the positive correction must be made for this LPG temperature value the LPG temperature calibration map must be brought up If the petrol injection time value is lower after switching to LPG the calibration map for a given LPG temperature value must be brought down The calibration map must be set in such a way as to ensure that the petrol injection time remains the same after switching from petrol to LPG In order to set the LPG temperature calibration map correctly the procedure described above must be repeated for the full range of LPG temperature values in 5 C steps 4 LED switchboard operation and acoustic signals User Manual 4 1 LED 300 switchboard Fig 38 LED 300 switchboard The LED switchboard consists of LED line indicating LPG level the LED indicating type of fuel button LED line shows current LPG level in the tank 4 green LEDs indicate a full tank a red LED indicates reserve The LED shows current operating status Off the engine runs on petrol Slow blinking once per second the engine is started on petrol and switches to autogas when the set parameters are achieved
45. n as it shows the load and injection times of the engine After pressing button El autoselection became active which means that the multiplier points will be selected automatically so that the point next to the cursor becomes active Maps can be deleted with buttons 2 petrol injection time map 2 gas injection time map In order to make injection time map acquiring easier on the left side of the multiplier window suggested engine load areas are presented as vertical lines The lines represent the areas of injection time maps which have not been recorded yet The blue line represents the petrol injection time map and the green one represents the gas map If a given area of the map is acquired the line section associated with this sector disappears C 24 fos 1 8 07 5 L F T m Jee W E124 De i Ole 0 87 032 06 A 04 0 2 02 Di 0 0 E E E E E ET TTT nnen Inj time ms Fig 20 Multiplier map Suggested area of petrol map acquisition AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 24 of 44 BWA les 1 Oo ma iD al Oe e T Inj time ms Fig 21 Multiplier map Suggested area of gas map acquisition 2 9 1 Multiplier adjustment
46. nspection To clear the service schedule select Inactive in which case the controller will not monitor the service schedule Selecting the option LPG CNG lock prevent driving on the gas beyond the set time of the review Below the working times the Controller Info lists the following types of registered events First PC connection date of the first controller PC connection First change of settings date of the first modufication of the controller settings If these fields do not show dates but instead the symbols it means an error occurred in the Controller Info Time information has been lost and the controller will start counting the times from the beginning Mod date 1 Mod date 5 a list of controller settings modifications From the most recent ones till the oldest Clear errors Time stamp showing when some controller error was cleared Each event is also accompanied by a code linked to the PC on which the modification was made Thus knowing the modification date as well as the PC code it is easy to determine whether any modifications have been performed by anyone else AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 10 of 44 Ac The bott
47. ntage Fig 33 Deviation map D view Positive values on the deviation map indicate that the mixture is rich Injection times are shorter on the gas map than on the reference petrol map Conversely negative values indicate leaning It should be noted that particularly within the low load and short petrol pulse range it is not recommended to seek deviations close to zero due to the natural distribution of petrol injection pulses as a result of the ECU control 2 19 ISA2 autoadaptation STAG 4 QBOX PLUS is provided with a system that when initiated corrects the gas dose as needed based on the acquired reference map for petrol injection Configuration and activation of the autoadaptation is performed in the ISA2 monitor window activated in the Window menu AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 34 of 44 E ISA Monitor SEE ISA 2 configuration Ey Adaptation switch on threshold 5 Ltft max i5 VA Yo Adaptation in OL Map autocomplete Auto stop Active ISA 2 params STFT banki 0 000 Temp dey banki 15427 OL mode Inactire Fig 34 Configuration ISA2 The monitor includes the following groups of settings and parameters Adaptation switch on threshold Acce
48. ntelligent extra injection handling checking the option will result in leaning of the post injection pulses It should be used for extra injection pulses that are too long to omit them with the option of Extra injection switch off threshold For the option to perform correctly the injection pulses must not be the source of RPM signal In some Mazda cars injection strategy varies from time to time to resemble semi sequential injection which may cause the effect of jerking It is recommended to activate the Intelligent extra injection handling for such cars Parameters in the OBD group settings of the connection between the controller with the onboard diagnostic interface available in STAG 4 QBOX PLUS controller Configuration selecting the OBD reader option results in an attempt to connect to the onboard diagnostic interface after each key switching if the controller operates in Auto mode The Advanced settings group offers the following options Emergency starts check to restrict the number of permitted emergency start ups on LPG and enter that limit into the Allowed textbox The number of the start ups already done in the past is displayed in the Performed field You can reset that counter using the Clear button Once the pre set limit is exceeded you will not be able to start the engine on LPG in emergency mode Injectors heating check to enable warming up gas injectors wh
49. oller settings Advanced settings Car info Petrol switch over Min gas RPM Max gas RPM Pressure error delay Min gas temp Intelligent press drop service foo 34 rpm eooo z rem foo z4 Ine pare fio 3 Jac wot cT 02 2k fincluded in kit m Cylinder switch over soo 1 me Max load on gas Hot start m E i Sensors and actuators Switching to gas sound ir Gas injector type Calibration parametes Reducer temp sensor cT 04 2k included in kit gt Operational pressure hos 2 bar Gas temp sensor alu PLES Suc O64 Bai bar Extra inj off threshold Gas temp fe FE Gas level indicator Configuration Int extra inj handling a Joep Reader Monitor Pressure Bar rY Gas 1 06 M MAP 1 01 M Inj time dose ms oy P1 0 00 G1 0 00 Iv P2 0 00 G2 0 00 Iv P3 0 00 M G3 0 00 F P4 0 00 M G4 0 00 Iv FPP FP Temperature C Gas 12 M Red SF mM Internal 39 M Other V mA 90 oy Lambda 1 2 55 M Battery 12 35 M RPM 0 m Engine load i Status Waiting For gas ST4a 4 QBs PLUS ver 2 1 1 33 1 0 2014 04 26 15 53 16 Fig 6 Parameters window Gas controller settings AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademark
50. oller version controller serial number Continuous green line is displayed at top of the oscilloscope screen while the controller operates in the LPG mode red line indicates operation of the injectors heating function AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 18 of 44 Ac The oscilloscope is an excellent tool to analyze vehicle working conditions Recorded parameters can be saved and reviewed In order to make the analysis of records easier the window includes navigation tools for effortless searching of the contents The curve is moved with the cursor on the oscillator window bottom cursor buttons and clocking on the left or right side of the window 2 8 Errors The tab is split into areas Figure 16 by the type of displayed information Gas controller errors and messages o Actual o Registered Engine controller errors o Pending o Registered REAC STAG 0 15 7 Port Window Language Tools Help Monitor Parameters Autocalibration Errors Maps Recorder Diagnostic ngine controller errors as controller errors and messages Pending Pressure Bar CS Gas 1 06 MAP 1 01 I r mi Inj time dose ms P1 2 91 G1
51. om of this window shows additional information ECU S N the serial number of the controller Your PC code The code of the PC on which the AcStag software is currently used 2 4 Controller Parameters The controller firmware version is shown at the bottom of the screen Fig 5 Text presented on the exemplary figure means he following STAG 4 QBOX PLUS controller model 2 1 1 controller firmware version number 33 1 0 controller version number The Parameters window lists a number of parameters which need to be set individually for each vehicle The Car parameters group contains Number of cylinders number of engine cylinders Engine type engine type Standard normally aspirated engine with no supercharger Turbo supercharged engine Valvetronic Source of RPM signal engine speed signal source Ignition Coil ignition coil standard option Set the number of cylinders per one coil for correct data presentation Camshaft timing belt sensor This option is very useful in vehicles in which cylinders are switched off in the cut off state and lack of ignition coil pulses might be interpreted by the controller as zero engine speed CAUTION Use that option only with a digital sensor of the timing belt Define number of pulses per one engine revolution Option active while a timing belt digital sensor feeds engine speed pulses to the controller specifies the number of pulses per one engine r
52. on can be used to erase OBD fault codes which is equivalent to error acknowledgement check engine lamp via an external OBD scanner a AC STAG Port Window Language Tools Help Parameters Autocalibration Errors Maps Recorder Diagnostic as controller errors and messages ngine controller errors i Pending Pressure Bar E Gas 1 05 Vv MAP 0 98 Vv Inj time dose ms Ly P1 2 91 V G1 4 46 Vv Registered Registered P2 2 91 V G 4 46 V P0300 Random Multiple Cylinder Misfire Detected 0 P3 2 91 V G3 4 47 WV P0200 Injector Circuit Open 0 P4 292 VGA 4 48 V P0301 Cylinder 1 Misfire Detected 0 y p p p Temperature C EJ Gas 24 V Red 52 M Internal 46 Vv Other V mA A Lambda 1 0 03 M Battery 13 29 M RPMIRPM 8 RPM 680 IV Engine load a a 4 0 20 3 e gt 0 10 0 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 gt al E D Status Gas STAG 4 QBOX PLUS ver 2 1 1 33 1 0 2014 04 28 15 53 16 Fig 18 The view of Errors tab OBD faults AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 22 of 44 2 9 Multiplier map The Maps tab displays various charts that visually present gas c
53. ontroller operational characteristics ee ee ee ee ee ee ee ee ed ee ee ee ee Multiplier Heg anssaid dy ee ee ee ee ee E q2 14 16 16 20 22 24 Inj time ms 10 Fig 19 Multiplier map Fig 19 schows 3 maps Multiplier map orange Petrol injection time map with petrol blue Petrol injection time map with LPG green The multiplier map is displayed in orange The left axis of the co ordinate system Multiplier and the lower axis Injection time ms relate to the multiplier map The multiplier map is used to set the multiplier for a given petrol injection time The yellow points visible at the map are used to set the multiplier To move a given point select it by clicking on it The value of a selected point is displayed at the lower right corner of the map To move the points on the map use the following keys lt left arrow moves the point to the left change of the injection time for a given point gt right arrow moves the point to the right change of the injection time for a given point JV down arrow decreases the multiplier for given injection times up arrow increases the multiplier for given injection times Insert when a point is active or right mouse button add a new point Delete delete a selected point on the map Page Up Rising a selected point by 10 units or the entire map if no points are selected Page Down lowering a s
54. or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 9 of 44 Fuel working time of the controller using petrol listed in the following format H hours M minutes S seconds Since last connection working time of the controller using petrol since its last connection with a PC Gas total working time of the controller using LPG Since last connection working time of the controller using LPG since its last connection with a PC Service Service Schedule When the controller reaches the working time using LPG set in this field every time the ignition key is switched off the controller will produce an acoustic signal reminding of the inspection Clearing the Inspection Schedule is explained below To set the Service Schedule click the re button in the About gas ECU window The following window will pop up Fig 10 Service set Service in 1000 1h km Service time OH Of LPG CNG lock 7 Fig 10 Service set window In that window you can set up the time to inspection The time to inspection is computed on the basis of the selected mileage after which the inspection is to be carried out Default conversion rate is 1h per 50 km but you can modify it In the example shown in the figure 1000 km and the 1 h per 50 km conversion rate translate into 20 hours of operation to the nearest i
55. petrol if the duration of min pressure exceeds the Pressure error delay e Gas temp gas temperature at which the controller was calibrated It is impossible to manually change this parameter Remaining parameters in the LPG Controller Settings group Gas injector type type of the LPG injector Changing the injector type requires re auto calibration or multiplier map calibration Clicking the Gas Injectors Settings button B will open up the following window in which the LPG injectors can be calibrated Gas injectors settings l x Flow corr Open corr Inj Seq MH fo tAE A b gh G1G G3G4 2 p sl 12 fo gms BIMI T 3 B2 WIT 3 p All 13 p jml BsC CR l4 io tA l4 io uz Bay T i Reset keset Reset Fig 11 Gas injectors settings window Gas injectors corrections Per cent correction of gas air mixture injected by gas injectors to each engine cylinder Injector opening correction the window allows configuration of very precise absolute correction of gas injector Unlike the percentage correction it is AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 13 of 44 constant and not dependent on time It is ideal for compensating differences in performance of in
56. portion Gas temp corr Red temp corr Gas press corr B G D ISA2 bank 1 Correction Fig 28 Gas pressure correction map view AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 30 of 44 2 15 Petrol map B Two dimensional gas and petrol injection time maps are displayed on the multiplier tab based on actual 3D maps acquired versus RPM and MAP pressure Fig 29 Petrol map B view The B tab presents a preview of the petrol injection time map acquired when driving on petrol The yellow cursor represents the actual operating curve point Right click and hold to turn the map around AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 31 of 44 Ac 2 16 Petrol map G Petrol map G is a collection of petrol injection times for various combinations of engine speed and suction negative pressures acquired during driving on LPG The two perpendicular yellow lines form a cursor that indicates the current operationa
57. pplication Gas injectors fully open Check the Lambda Looping of gas injection i e one gas injection sensor at maximum load pulse is overlapped by another pulse If the Lambda sensor during the message display works in a rich mode the error can be ignored otherwise use larger injector nozzles to reduce the multiplier LPG CNG locking review The gas installation requires a service inspection Lock LPG CNG option checked The controller will not operate in gas fueling mode until the service message is erased New settings The controller indicates new settings The message is usually displayed when new firmware is installed to remind about the new options Low gas temperature Low gas temperature detected in gas fueling mode Check the condition and method of reducer installation AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 21 of 44 Ac 2 8 3 Errors of the ECU The controllers equipped with a OBD adapter STAG 4 QBOX PLUS are capable of continuous monitoring of recorded and pending faults with the use of the onboard OBD2 EOBD interface The errors are displayed as codes according to OBD2 EOBD notation system with descriptions If an error occurs the Delete butt
58. pted deviation between the actual petrol injection time and time recorded for the reference petrol map In other words adaptation will be attempted only if the deviation exceeds the threshold value Due to the mentioned natural distribution of petrol injection pulses as a result of the ECU control a minimum deviation setting is 4 LTFT maximum maximum limit of the correction value that autoadaptation can implement Adaptation in OL Activation deactivation of autoadaptation in an open loop mode The function requires a voltage type Lambda sensor connected and activated Fuel Loop Status reading option see OBDII EOBD reader Chapter 0 Map autocomplete Activation deactivation of the auto switching to petrol option in areas without reference injection pulses recorded The option works within an RPM range from 1500 to 6000 Auto stop checking the option will result in automatic blocking of engine operating curve points on SA2 correction map when the specified deviation limit is reached see Adaptation enable threshold Active autoadaptation On Off STFT bank 1 current correction of injection time implemented by the autoadaptation Temp dev Bank 1 Momentary percentage value of petrol injection time deviation when driving on gas with respect to the reference injection recorded when driving on petrol A positive value means that the injection time on gas is longer than on the reference map ISA2 O
59. roller s power supply RPM rpm engine revolutions Engine load current engine load value expressed in per cent All the above described signals are also visible on the oscilloscope To turn off a given signal on the oscilloscope click on it By clicking on the name of a given signal you can change its colour on the oscilloscope Respective icons are displayed next to gas injectors You can click any of the icons to disable enable gas injector represented by the icon together with corresponding petrol injector That way you can easily diagnose mechanical failures of the injectors The setting is temporary and deactivated automatically after disconnection of the diagnostic application and cutting off the voltage with the key Top of the Monitor pane is occupied by LED switchboard Depending on the type of controller and selected switch in can be presented in two versions presented on figures 12 13 Fig 12 Switchboard LED 300 Fig 13 Switchboard LED 300 401B LED 401 There is a button on the LED switchboard for changing the fuel type The operating condition is signaled in case of LED 300 switches with the diode located next to the button LED 300 401B and LED 401 switches use button illumination instead Basic indications Off petrol On LPG CNG Pulsing auto mode The chapter 4 1 contain a detailed description of operating mode of the controller AC S A all rights reserved Under penalty of law and or lia
60. s etc Page 7 of 44 FE AC STAG 0 15 7 Port Window Language Tools Help Parameters Autocalibration Errors Maps Recorder Diagnostic Car parameters Gas controller settings settings Car info 5 x Monitor i X Emergency starts Leaning oncold engine Allowed b C Max engine temp ho gm Performed T cl Max REM 4000 WAREM EA Max gas injection time fo gjin Hee 2 Pressure release Active r Gas 1 06 M Switch o er threshold jue giba MAP 1 01 I Pulse f 1 f Other land time ulse frequency p gis Inj time dose ms R P1 0 00 G1 0 00 7 Min petrol inj time oo 4 ms ies at as rp H z A ka y ee pz P4 0 00 V G4 0 00 F etrol adding time rms a PPPP Injectors heating Temperature C ip Injectors heating C Gas PF Activation temperature jo irc Red 37 F Internal 39 Iv Other V mA 36 im Lambda 1 2 55 M Battery 12 35 M RPM 0 Iv Engine load E Status Waiting For gas STAGa 4 QBs PLUS ver 2 1 1 33 1 0 2014 04 26 15 53 16 Fig 7 Parameters window Advanced settings D x REAC STAG 0 15 7 Port Window Language Tools Help Monitor Parameters Autocalibration Errors Maps Recorder Diagnostic Car parameters Gas controller settings Advanced settings Car info Gas installation fitter First Name Last Name Po
61. s drawn with continuous lines check the deviation between them In the Map window there is the D button located on the right Press it to see the deviation graph drawn with a red line If the deviation fits within 10 the controller is programmed properly otherwise the multiplier characteristics should be corrected at points where maps do not match 3 5 Controller manual setting The controller may also be set up manually which provided sufficient experience has been gained may prove quicker than the above described procedure Start with the auto calibration in the same way as described above this is necessary to ensure the controller works properly see 3 1 If the auto calibration finishes properly and the multiplier values are correct for the calibration point switch the engine to petrol and take it for a ride The multiplier characteristics need to be set in the following way Drive the car with a constant load i e the petrol injection times should be stable Adjust the engine loads so that the injection times equal e g app 5 ms The blue marker will help determine the injection times as it is location on the horizontal axis is determined by the injection times Next switch the car to LPG and watch the blue marker for variations in injection times when compared with the earlier petrol injection times If the injection times decreased the marker moved to the left it means that for the selected injection times the mult
62. sensor characteristics The current voltage read from the gas level sensor is also displayed With the LED thresholds setting window displayed gas level change on the sensor results in immediate indication of the LED diodes It is also used for checking the correct operation of the indicator and the switch When the window is closed normal operation changes in gas level are updated on the LED switch with a delay In LED 400 and LED 401 switches it is also possible to change the sequence of gas level diode activation the left one is considered as the first one bottom one with respect to the buzzer adjust the buzzer volume 1 minimum 4 maximum adjust the diode brightness LED 401 also allows automatic adjustment 2 6 Auto calibration The auto calibration window is used to calibrate the engine at idle run After starting and warming up the engine when Lambda sensor starts operating start the auto calibration During the auto calibration the engine should work at idle run Switch off air conditioning and lights and do not turn the steering wheel During the calibration the controller will automatically switch from petrol to LPG The controller will be automatically switching on selected LPG cylinders Once the auto calibration is complete the AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contain
63. ssseeccccessaeeesseeeecceessuaeeesseeeeeeeeeuags 6 21 Controler computer COMMCC NON serisine E EEEE EEEa 6 DD ACS TAT T O T E S S E E E 9 2e N MY cen ater E E E E E E E E E E 9 2A COO CE aE a on en E E S 11 2 9 518nals ingectors LED switchboard seeccicsscusseccancestmasnosendaacenatsecsuaneosanawatennpneeadeadanatiacteoseaas 15 DO O A O e a E E E edvenceuanscersyedsaneouc 17 Dood SCAMOSC ODE eae E E E E E E 18 PE NUL EEEE EE SEE A A ES A O E T EA 19 Dod Prono TNC AS COMICON ai E ES 20 28 2 Jas COMUOMCT MESSI O aaah ca cts tataaewet cn uadolasdsiesn Ler uaaosaianeen toecnduiesaew tontosatslaniepattersiedied 21 De MeTROUS TOL Ue Co gates season E ase E des ves tecaeoase E 22 De AUTOS TAMA o EI E A N nc oc lee inc estos erst scene ocala tiow ec E ae cs scae ech gecadion eco 23 pe As ARP aS n 0 Sener eee er eee ee er eve ree ey ee ee 25 ZNO ROE WC O CIO MAMA sie sigestee A E E E E staat eceeiede 27 Dill Petrol poruon Map eessnensenss onunda E E E 28 2 12 Gas temperature correction map sssssseeeresssssssecterrssssssseetersssssssectresssssssserersssssseeeeereo 29 2 13 Reducer temporaire correc Hon Map esscr ai e E RERE 29 2 14 Gas pressure correction Map seesessssssseeeressssssecerrrssssssseerersssssseeeeressssssseetersssssseeeeeeeo 30 Dh Dig PEO 5 D ea A A A EE E EEE ESEE 31 OPOLA E E A qcaseuePacsbanchincaeddeceaeaucs 32 DA tha Map CIC CIES Hon Si ounneri O OE E EE Ee Sros 32 2 16 Me CUO Ume STAN OTN MAp ecseri E EE 3
64. stalling the controller not in line with the recommended layout diagram in particular from hooking signal cables up to other terminals than those specified in installation guidelines 2 Damage resulting from installing the controller in places incompatible with installation guidelines or from exposition to water high temperatures vehicle battery vapours 3 Devices tampered with repaired without proper authorisation 4 Mechanical damage through Customers fault in particular damage of connectors including damage caused by use of inappropriate chemical cleaning agents controller housing electronics PCB 5 Electrical damage of circuitry brought about by hooking communication interfaces up not in line with installation guidelines AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 44 of 44
65. tage shi AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 37 of 44 Ac A 2 21 Controller update To update the controller connect it to the diagnostic software and turn the engine off Select Tools Devices update from the main menu All available devices are automatically found The Devices update window will pop up The Devices Parameters window shows the information on current controller firmware version The Available updates window includes a list of updates available for the connected controller Loading an update not included in the program directory requires clicking Read update and selecting the update file Loaded update should be included in the list of available updates Click Update once the update file has been selected from the list When the progress bar reaches 100 the controller will disconnect and then re connect The new version number should appear at the bottom of the screen and should reflect the version number of the update file Should the update go wrong the update window will be opened automatically upon connecting with the controller Perform the update procedure again AC S A all rights reserved Under penalty of law
66. ute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 12 of 44 e Intelligent press drop service the function allows to utilize gas residues in the LPG tank e Min gas temp min LPG temperature when lower the controller will switch over to petrol e Max load on gas the maximum load value in the LPG mode above which the controller switches to petrol This option is very useful for the engines in the case of which petrol injectors can be fully opened In such a situation the LPG controller can only open LPG injectors permanently as well However corrections e g resulting from changes in the LPG pressure will be no longer possible The moment when petrol injectors are fully open corresponds to the load value of 100 If petrol injectors become fully open the Max load on gas parameter should be set to approximately 95 This will result in the controller switching to petrol before full opening of LPG injectors Calibration parameters parameters related to controller calibration e Operational pressure LPG pressure at which the controller was calibrated This setting can be altered manually However each change of the operational LPG pressure requires multiplier map calibration e Minimum pressure when the pressure is lower than minimum the controller will switch to
67. values related to the petrol injection time ina given operating curve point Example 20 for the 10ms column means 2ms petrol extra injection AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc Page 28 of 44 Ac After modification of the petrol portion map verify if the mixture is correct in areas allowing petrol extra injection 2 12 Gas temperature correction map The controller is provided with automatic gas injection time correction based on gas temperature The Gas temperature correction map allows the user to enter manually an additional percentage correction based on gas temperature Entering modifications is just like on the multiplier Parameters Autocalibration Errors Maps Recorder Diagnostic l Multiplier RPM correction Petrol portion Gas temp corr Red temp corr Gas press corr B G D ISA2 bank 1 x 507 r 7 TE a j r 0 ne ne ee ee ee 304 Correction D 40 30 20 10 o D 7 430 40 50 60 70 80 90 Gas temperature C Fig 26 Gas temperature correction map view 2 13 Reducer temperature correction map You can also chart corrections factors vs reducer temperature see Fig 15 and enter modificat

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