Nissan Data Scan User Manual
Contents
1. Misfire 68 No 1 Cylinder Misfire 71 Random Misfire 12 TWC Function RH Bank 73 TWC Function LH Bank 76 Fuel Injection System Function RH Bank 1 Rear Oxygen Sensor Circuit 82 CKP Sensor 84 A T Diagnosis Communication Line 85 VTC Solenoid Valve Circuit 86 Fuel Injection System Function LH Bank _20 87 Canister Control Solenoid Valve Circuit 9 Front Oxygen Sensor Heater Circuit RH Bank 94 TCC Solenoid Valve 95 CKP Sensor 98 ECT Sensor 101 Front Oxygen Sensor Heater Circuit LH Bank 103 PNP Switch Circuit 105 EGR And EGR Canister Control Solenoid Valve Circuit 108 Canister Purge Control Valve Circuit Continuous Improper A T Control Unit Voltage To ECM 212. PE TUTOR F koag Gnd sinh E Gran Met U rep i U Gran 3 rap Graph 2 Thro Graph F Grape m Sanini mector le Gr Gran M Graph 2 Graph r Di Sener RH Tren ag 43 Data r T Graph 2 z Grp r 191 Deseti Cian Ll E 1 ye di a A F F 4 i AA a u 1 jo A n Log Analyzer The Log Analyzer provides the ability for the user to graph logged data to compare readings similar to the Data Replay function The graphical output is useful for evaluating the data in a more chronological fashion Graphed logs can be evaluated for trends and compared for cause and effect determination The data to be graphed is displayed at the top By checking the appropriate box the data can be graphed in either the top or bottom graph Using this capability the logged parameters can be displayed in the most meaningful fashion Using the position slider values for discrete time points may be compared 14 Active Test Engine Temperature select value WCT START oUF w On CO Of START Base Timing modify by Fuel Pump START OF On Off START Ol AAC Valve select value Cylinder Off pl START Se SS STOP Me Bes ST se AL Valve select value START A F Base select value E Hot CLEAR SELF LEARN Warning Inappropriate use may damage the engine Active Test The Active Test panel allows the user to interact directly with th
3. in the case of dual exhaust systems Registers There are four register check boxes at the bottom of the screen which can be used to enable monitoring of registers 13 1E 1F 21 Register 13 Closed TPS Switch Air Conditioning Switch Power Steering Start Signal Neutral Register IE Air Conditioning Relay Fuel Pump VCT Thermo Fan Register IF Naste Gate Solenoid EGR Solenoid Register 21 Air Fuel Ratio Active Register Test Querying ECU Register 11 Active registers Register 6 active Water Temp supported Register Y active UZ Sensor supported Register A active De Sensor RH supported Register B active speed supported Register C actue Battery supported Register D active Throttle supported Register E active not supported Register 10 active not supported Test for live registers This button queries the ECU for active registers When the query is complete select Update Gauge Selection to populate the gauge drop down lists with only those gauge choices supported by the ECU Dashboard Settings Gauge PPM Gauge z speed 2 Alerts enter value RPM Speed ave Dashboard Settings Select the two gauges to use when using the Dashboard function described on page 12 This feature is targeted at car PC users but is also a good way for a tuner to monitor 2 important readings without the clutter of the main Data Display Use the Alerts options to set limit p
4. tire measurements must be input in the preferences panel as shown on page 6 4000 3000 9000 2000 els 6000 1000 7000 8000 Dashboard Selecting Dashboard will display the two gauges selected in the Dashboard Settings panel as shown on page 9 This display is a full screen display and makes it easy for the driver to monitor the chosen parameters without having to focus on the smaller gauges on the Data Display screen If the preset alert values are reached a colored box will appear next to the respective alert text APF ey Throttle o a S 3000 3000 AF Base 430 El Closed TPS Neutral i VCT PRSNE P r Steering El Air Cont anj Waste Gate sol Replay speed Air Cons Fuel Pump AIF ratio 4 4 E Of Start Signal El Thermo Fan El EGR sol Play Stop Open Data Replay Use the Data Replay function to playback a logged data file collected using the Data Logging option shown on page 11 The playback can be run at real time or stepped through using the sliders An example of the usefulness of this tool might be checking the injector duty cycle at a given rpm or the airflow sensor voltage for a given rpm and mph The bottom left portion of the display monitors non analog sensors or conditions For example the status of the VCT is displayed in red when VCT is active Another option for reviewing log data is the Log Analyzer feature 13 Mata Log CM rograr Pre occa eta Frank
5. 96 model year 300ZX This setting allows for communication with 96 model 300zx OBDII complaint cars via the Consult I port You may also have to check this box 1f your ECU 1s later than 1996 in some other models F Auto Connect to ECU This checkbox should be selected if you want NDS to connect automatically to your ECU each time the program starts Data Display Colours auge Colours General Colors Window Background Registers O Background scale Digits Feak Value Value Mame Meedle Annular Ticker Sub Ticker __ Sy N a Display The display settings panel provides selections to customize the gauge display screen and the general program colors The settings are save automatically when OK is selected _5 Preferences Tyre size speed Correction CEM size W 205 H 55 OD 16 Current size W 205 H 55 OD 16 speed Lit Temperature Unit Celsius Cancel Preferences Tyre Size Speed Correction Use the selections on the preferences menu to set the tire size information Setting the correct values enables NDS to provide accurate reports of time distance when using the Speed Trial feature For example When aftermarket wheels are used on the car the corrected value will be displayed in Data Display window It does NOT effect vehicle speedometer reading Speed Unit and Temperature Unit Use the pull down menus to select Imperial or Metric units Data Display Set
6. Advance Functions spd Corr 1 S600 KPH Celsius NOS Activation ECU PART NUMBER 23710 444 The settings menu is accessed via the pull down menu on the main screen This menu provides access to the general program settings Communiction CCM Port mu Fort speed 9600 Address read cg command in Hex ECU Id fin Hex EF Find ECU 96 model 232 LEBDI Auto Connect to ECU Communication The Communication screen configures parameters required for NDS to access your ECU A The port setting defaults will work for most users Select a different COM port number if the port your cable is connected to is not COM 1 B Address read command specifies the command to be used for reading ECU memory data Some ECUs with daughter boards use command other than the default C ECU Id specifies target ECU Engine ECU Id varies between regions and models This is usually set to EF _4 Communication Cont d D Find ECU This button tests for active ECU IDs Active ECU test x NOTE Querying ECU ES ECUs other than engine ECU Active ECU may respond to the query during the Active ECU test Identified IDs can then be tested for compatibility by entering the ID in the ECU Id setting on Communication window and running a test connection NDS only supports engine ECUs ECU id EF active Jos Cancel Test may take up to 90 seconds E 96 model 732 Check the box if your car is a 19
7. Nissan Data Scan User Manual http www nissandatascan com A note to our customers This software is provided to assist the enthusiast in performing tuning and data collection on the user s car for the purpose of maintenance and performance improvement We at blaZt strongly suggest you read this manual and understand the contents before using it to tune your vehicle We make no warranty implied or otherwise regarding the use of this software or any hardware supplied by blaZt This manual developed for blaZt by KK Engineering http www kroffts com kke BOJE Contents The Main Screen Menus A ad ade Ania ene 4 COMUNICACIONS i gen etait LR cs Sees otha had inc os tn tae dae esas avon 4 DO BONE a a en LEC a CENIT RI id nu ne DE PRE a RR AE eae 5 Pre re sr E ic KERIM 6 Biol Ne ee PE SS Peer ES EVER PERE 6 AS DO A Ue chaste cscs tramiti Do aaa 9 Program Functions Data Dispara EET ZO ee eerie re err erry Pa kt oido 10 Data pocos eee En ee eee ee eee TOY ee POD ee a eS 11 Self DIAS MOS CSS atent ten eee samt rabinos 11 Spesd Trad SU aci 12 Dashboard a cr nt et roc ti et oo des 12 PAA NA sii bibi 13 ENANA Nara 14 AUN MES is dba Sata 15 Rom DAS na ona ami nt Nan ini 16 ACCESS VV AUC MR en on ea ce du cm in ion 16 MAD PAGES ii a in AR 17 The Main Screen Menus 2 Nissan Data Scan v1 52 esr Function Help Communication Ctrl Fi Display Ctrl F2 Preferences Ctri F3 Data Display Crri F4 Dashboard Cbrl F5
8. Trim Right hand bank on V6 or V8 Engines Air Fuel Base Self Learn A F Base value learned by the ECU also called Long Term Fuel Trim or Self Learn Left hand side of V6 or V8 Engines Air Fuel Base Self Learn Right Hand A F Base value learned by the ECU also called Long Term Fuel Trim or Self Learn Right hand side of V6 or V8 Engines Duty Cycle Duty cycle of fuel injectors as a percentage of total available cycle time left bank if engine is a V6 or V8 and configured to control the banks individually RPM and Injector Time must also be selected Duty Cycle is calculated from Injector time Injector opening time 1s calculated by the ECU based on an engine load It s not a measured value and it might not be achievable given the RPM Due to this it s not uncommon to see Duty Cycle above 100 Gauge Selections Cont d Duty Cycle Right Hand Duty cycle of right bank fuel injectors as a percentage of total available cycle time when engine is a V6 or V8 and configured to control the banks individually RPM and Injector Time Right Hand must also be selected O2 Sensor B1 Percentage of full scale of the oxygen sensor on OBDII compliant cars located after the catalytic converter left side if two sensors are configured as in the case of dual exhaust systems O2 Sensor B2 Percentage of full scale of the right side oxygen sensor on OBDII compliant cars located after the catalytic converter when dual sensors are configured as
9. ata per ECU request Use the Slow option to download 1 byte of data per ECU request The slow option takes much longer but is more reliable Use it only when the fast option times out or faults NOTE To update the ECU with a modified program the ECU must be socketed for the use of a chip that contains the new code Nissan Data Scan does not provide a means to write or burn the new data to a new chip Address Watch Enter address to watch in Hex 0000 0001 0002 Address Watch Address Watch is an advanced function It is used to monitor specific address locations This 1s often useful if a tuner needs to monitor a function not viewable by the other program options 16 Map Tracing Engine Map Select ECU map VGS0DET 1 fuel REM MSB Address TADA Map Address FDOO RPM LSE Address 11406 TF scale Address FAFO TPMSB Address hase REM Scale Address FB00 Clear Trace Map Tracing Map Tracing refers to the ability to monitor the ECU directly in real time The fuel and timing maps consist of a 2 dimensional grid whose blocks represent corresponding RPM and Theoretical Pulse Width Scale values For a given RPM and Pulse width the chart provides a value to be used for the function controlled by the map Fuel maps provide a target A F ratio Timing maps provide the desired ignition advance The first screen allows the selection of the map to be monitored All addresses can be entered manually or predefined temp
10. e ECU With this tool control parameters can be overridden to evaluate engine system response to individual variables For example setting the Engine Temperature to a particular value makes the ECU respond as if the temperature were actually that reading This could be used to diagnose temperature sensor failures If the engine is running very rich due to a sensor failure that has the ECU responding as if the car is not warmed up and in need of enrichment then setting the temperature to a typical warmed up value would correct the rich condition and pinpoint the faulty sensor Base Timing is a base ignition timing as recommended by the manufacture By increasing this value you are temporarily increasing timing across the whole timing map as if you were adjusting the CAS on your engine AAC Valve and IACV Valve control engine idle speed Most Nissan cars are equipped with AAC or ACV valve This function can be used to temporally increase or decrease engine idle speed for trouble shooting purposes or by checking idle speed verify that the units are functioning A F Base is base fuel injection as programmed in the fuel map By temporarily adjusting this value you are adding more fuel across the whole fuel map The VCT control manually actives the VCT solenoids to aid in diagnosing their function The Fuel Pump switch is one of the most frequently used features Use it to shut off the pump with the car running to depressurize the fuel system before workin
11. g on the fuel lines or injectors Cylinder Off is used to determine whether all cylinders are firing Typically each cylinder s check box would be selected and clicking on the Start button will shut down that cylinder If the rpms drop or the engine idle gets rougher then that particular cylinder is working But if a cylinder 1s disabled and there is no change in engine running or idle quality then that cylinder is faulty and further diagnosis needs to be made to determine if the issue is ignition or fuel delivery related Base Idle Adjustment provides a simple way of turning off the Idle Air Compensation valve to make it easy to set the base idle speed Clear Self Learn The ECU constantly monitors conditions and driving style and stores control data that it later uses when determining the proper values for parameters such as injector pulse width and timing When tuning it 1s often useful to clear these values to avoid skewed test results caused by the use of values stored before the tuning exercise _15 Select Type Enter Address 1 Reading Address Fast Start Adr 0000 Hex 7FFF C Glow otop Adr Hex File location C Program Files Hissan Data Scan rom bin Browse Function may not work on some ECU Rom Data Use the Rom Data panel to download the data table portion of your ECU s chip to a disk file It 1s this file that 1s edited by Tuners to improve vehicle performance Use the Fast option to download 8 bytes of d
12. jecioj M Duty Cycle FP 02 Sensor Be M Closed TPS YP Base SL RA Power Steering MW Air Con sw M Start Signal M Neutral M Air Con rly M Fuel Pump Ww Thermo Fan M YCTM EGR sol M taste Gate sol Iw AF ratio Directory CAProgram Files Nissan Data Scan Browse File Name 20085141759 109 Data Logging This screen allows the user to select what vehicle functions to log to a file It also provides options for the log file name and location When the Start button 1s clicked the chosen parameters are monitored and logged to a comma delimited text file or CSV This file can be graphed by Nissan Data Scan or opened in common spreadsheets such as Excel Self Diagnostics Diagnostic Codes Code 55 Mo Faults Self Diagnostics The Se f Diagnostics function reports any diagnostic codes present in the ECU See Appendix A for a list codes for 88 94 amp 95 Pathfinder Quest Truck amp 300ZX Other models are similar Speed Trial select speed Trial Result U 50 100 0 En 0 0 A be U Activate 0 Ta fan Speed Trial This feature provides an accurate method to measure vehicle performance Select the test to be performed and click Activate When the program senses input from the ECU speed sensor circuitry that the starting speed has been reached it will begin timing When the chosen upper limit is reached it will display the elapsed time for that test For accurate results the proper
13. late can be selected from the drop down menu at the top The NDS software remembers the last used setting next time the function is used Some templates may not work on all ECUs but most of them do 17 Map Tracing Engine Map 6 12 15 18 21 24 27 30 33 36 39 42 43 54 60 66 1 4 Sr dT 1 ta E rL F l Tai A Pili ee said Map Tracing Cont d On the main Map Tracing display the purple cells represent areas of the map that are closed loop Closed loop refers to areas that the ECU uses O2 sensor readings to determine proper adjustments The red areas are open loop where the ECU uses the map data directly 18 Appendix A Code 11 Crank Angle Sensor CMP Sensor 12 Air Flow Meter MAF Sensor 13 ECT Sensor 14 Vehicle Speed Sensor 21 Ignition Signal 22 Fuel Pump 23 Idle Switch On Off Diagnosis 24 Throttle Valve Switch 25 ISC Valve 28 Cooling Fan Circuit Overheat 31 ECM 32 EGR Function 33 Front Oxygen Sensor 34 amp 37 Knock Sensor 35 Exhaust Gas Temperature Sensor 36 EGRC BPT Valve 38 LH Bank Closed Loop B2 41 Intake Air Temp Sensor 42 Fuel Temperature Sensor 43 TP Sensor 45 Injector Leak 19 47 CKP Sensor 51 Injector Circuit 53 Oxygen Sensor RS 54 A T Control 55 No Malfunction 63 No 6 Cylinder Misfire 64 No 5 Cylinder Misfire 65 No 4 Cylinder Misfire 66 No 3 Cylinder Misfire 67 No 2 Cylinder
14. mode This is normal and desirable for fuel economy ECU will switch to open mode while accelerating hard This is a narrow band sensor and should never be used for tuning O2 Sensor Right Hand Percentage of full scale of the right side oxygen sensor when dual sensors are configured Speed Vehicle speed in KPH or MPH Battery Voltage Battery charge level in volts Throttle Position Sensor Voltage signal from the throttle sensor Fuel Temperature sensor Fuel temp in C or F as measured at the fuel injection rail Intake Air Temperature Temperature of the incoming air Exhaust Gas Temperature Temperature of the exhaust gases vehicle must be fitted with EGT probe Currently only 222 EGT Sensors are supported Injector Time Pulse width of injectors left side if engine is a V6 or V8 and configured to control the banks individually Injector Time Right Hand Pulse width of right bank injectors if engine is a V6 or V8 and configured to control the banks individually Ignition Timing Spark timing in degrees AAC Valve Percentage of the Auxiliary Air Control Valve opening idle speed control Air Fuel Base Percentage of a fuel map setting currently used to run engine in closed loop Also referred to as Short Term Fuel Trim left side if engine is a V6 or V8 Air Fuel Base Right Hand Percentage of a fuel map setting currently used to run engine in closed loop Also referred to as Short Term Fuel
15. oints for warnings when set limits are reached Setting the limits to unachievable values will effectively disable the alerts Program Functions The main program functions are accessible in three ways They can be selected from the pull down menu at the top of the Main Screen by clicking on the large Main Screen buttons or by pressing the corresponding Function Key on the keyboard The functions are divided into 2 groups Basic Functions that are useful for general monitoring of vehicle parameters and Advanced Functions for use in testing and tuning 4000 5000 Throttle Of Closed TPS Of Power Steering Of Air Con sw Of Start Signal Of Neutral 100120440 50 60 70 180 200 100 110 Speed kph 50 60 RE 90 100 110 Injector Duty Cycle A F Base 130 20 90 140 Air Flow Of VCT ala Logdin Of Air Con rly Of Waste Gate sol Of Fuel Pump E A F ratio AR ES Of Thermo Fan EE EGR sol Data Display After configuring the Data Display options in the Settings Menu selecting the Data Display Function vvill bring up a display of all the gauges that were assigned a function These gauges display actual data as provided to the ECU in real time 10 Data Logging select parameters to log M RPM M Battery M Air Flow he Throttle FP Airflow RH F Fuel T water Temp F AirTemp M O2 Sensor EG F O2S5ensorRH I Injector M Speed b Timing Logfile location M AAC le AF Base TU n
16. tings Gauge Duty Cycle require RPM amp Inj Gauge Air Fuel Base Gauge 4 Water Temperature Throttle Position sensor Gauge 4 Gauge 10 Battery voltage Air Flow Gauge 5 Gauge 11 Ignition Timing 02 Sensor Gauge b Gauge 12 Injector Time AAC Valve Registers M Register 13 M Register TE W Register IF W Register l Dave Lancel Test may take up to 30 seconds Data Display Settings When the Data Display Basic Function 1s active the computer screen becomes a full screen gauge panel The Data Display Settings panel allows the user to determine what each of the 12 gauges will display Note that all 12 gauges must have a selection Also note that not all listed gauges are supported for all ECU vehicle types Selecting a gauge that 1s not supported such as EGT when no EGT is fitted will cause an error and all gauges will display 0 Multiple gauges may monitor the same parameter The following 1s a list of possible gauge selections RPM Engine speed in revs per minute Air Flow Voltage from the MAF left side if tvo sensors are configured Air Flow Right Hand Voltage from the right side MAF when dual sensors are configured Water Temperature Coolant temp in C or F O2 Sensor Percentage of full scale of the oxygen sensor left side if two sensors are configured as in the case of dual exhaust systems Oscillates between 10 and 90 when the engine is in closed loop
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