Daytona Sensors LLC
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1. Z HOSNAS INSLSAS 91 0 3 LNdNI SOWNY G093M LNdNI WdH HOLVNIWHAL NYO LAdLNO AS 0 13031 TWNOIS oa HLIM HOSNAS 1NdNI WdH AG HO SdL dNNd N3349 1HOd 8SN 3LIHM 1 1100 HO 5 HOWL J 139 XOV1a 9 WNd 03H N3349 HLH 3LIHM 139 XOV1a AS NMOH YOSNAS ol HOSN3S OL SNOILISOd HAdNINE 13441 IVNDIS Wd ERA OLasn HOSN4S HOSN4S WEGO 5 9 2014 Page 3 Daytona Sensors LLC 933 Beville Road Suite 101 1 S Daytona FL 32119 386 322 7390 www daytona sensors com 11 For analog signal data logging connect the WEGO 5 analog input to one of the following a Throttle position sensor Most engine controls use a TPS throttle position sensor with a 0 5 volt signal range Refer to your service manual for details b Manifold pressure sensor Most engine controls use a MAP manifold pressure sensor with 0 5 volt signal range Refer to your service manual for details c Other 0 5V analog signals The WEGO 5 can log any 0 5V signal For other sensors use a scope meter to check the signal before connecting it to the WEGO 5 The WEGO software is used to set the units and scaling for the analog input Refer to the WEGO software instructions for details WARNING Connecting the WEGO 5 analog input to a high voltage in excess of 12 volts will damage the unit and void the warranty 12 Optional AFR outputs You can c2. 0 85 0 87 Lambda Values down to 11 5 AFR or 0 78 Lambda may be used to reduce detonation Wide Open Throttle 10 8 11 8 AFR turbo supercharged 0 73 0 80 Lambda DATA ACQUISTION The 0 5 volt analog outputs white and blue wires from the WEGO 5 are compatible with most data acquisition systems that have available analog inputs We do not offer any technical assistance on interfacing to your data acquisition system You must contact the vendor for support WEGO units are useful in a wide range of engine tuning and testing applications After free air calibration accuracy is 0 1 AFR or 0 007 Lambda All WEGO units have the same scaling for the 0 5 volt analog outputs on the white and blue wires Gasoline AFR 2 x Vout 5 or Vout 0 5 x AFR 5 Lambda Lambda 1361 x Vout 5 Vout 7 345 x Lambda 5 Additional scale factors are listed on our Tech FAQ at www daytona sensors com Note that when power is first turned on and the sensors are not yet at their normal operating temperature the analog outputs are held at less than WEGO 5 9 2014 Page 5 0 20 volts During free air calibration and while the WEGO 5 status LEDs are rapidly blinking the analog outputs will be near 5 0 volts EXHAUST SNIFFERS WEGO 5 units can be used with easily fabricated exhaust sniffers that allow temporary installation on most automobiles and motorcycles for tuning and diagnostic purposes including vehicl
3. are shown on Figure 1 or the use of wire labels If you use different wire colors mark up Figure 1 for future reference Refer to the Appendix for recommended wire labels Wire should be stripped back 3 16 1 4 inch No bare wire should be visible outside the terminal block Use a miniature flat screwdriver to tighten the screws The terminal blocks are removable and can be pulled straight out by the wires Connect the Bosch sensors to the 6 pin mating connectors on the supplied extension cables You can shorten the extension cables if required Longer 12 foot extension cables P N WEGO CBL 12 are also available Refer to Figure 1 Connect the WEGO 5 ground wires to a good frame ground location Use 18 AWG wire for the power ground connection If you are using a data acquisition system connect the ground wires to the same point that the data acquisition system is grounded Keep the ground connections as short as possible Try to use an existing wire harness ground location Do not ground the WEGO 5 to the battery minus terminal or to the engine Connect the WEGO 5 switched power and continuous battery power You can usually find switched power at an accessory fuse on the fuse block You can use the supplied fuse tap and 3 16 female crimp terminal for this purpose Optional signal hookups including engine RPM and analog signal data logging are explained in sections 10 12 RPM signal This connection is required to utilize th
4. small engines use CD ignitions Any engines with flywheel triggered systems fall into this category These applications will require a special tach adapter P N WEGO TACH ADAPT If you have a Japanese motorcycle download the WEGO Tach Adapter instructions from our website at www daytona sensors com Tips are provided for identifying the type of ignition system in use c Low level logic signal This type of signal is found on late model vehicles including many imports that use coil on plug with integrated drive electronics Refer to the vehicle wiring diagram for details You can use the signal that goes from the ECM to any one of the coil on plug units During initial setup you must configure the RPM signal level jumper on the left side of the WEGO 5 front panel The WEGO 5 Dual Channel Log software is used to set the correct scaling for engine RPM in terms of pulses per revolution The unit can easily be set up for operation with 1 12 cylinder engines Refer to the software instructions for details WARNING Directly connecting the WEGO 5 RPM input to the coil of a CD type ignition will damage the unit and void the warranty WEGO 5 9 2014 Figure 1 Typical Vehicle Hookup for WEGO 5 81 MOV1d LAdNI WALSAS NOILISINDOV LANI YAMOd AYA LIVE ANNOY TWNOIS SNONNILNOO OL HAMOd HAMOd AYALIVE H3MOd GSHOLIMS OT NVO Q3HOLIMS OL 109110
5. ED NO YES CALL TECH SUPPORT DONE Daytona Sensors LLC 933 Beville Road Suite 101 1 S Daytona FL 32119 WEGO 5 386 322 7390 www daytona sensors com 9 2014 Page 10 APPENDIX RECOMMENDED PARTS AND SUPPLIERS PRESSURE SENSORS If the vehicle does not have a factory ECM that provides 5 volt power for a standard automotive type MAP sensor you can use an industrial sensor such as the SSI Technologies P51 series These can be powered directly from 12 volt and provide a 1 5 volt output P N P51 15 A UB I36 5V 000 000 has a 0 15 psia range and is suitable for normally aspirated engines Other versions with higher pressure ratings are available for boosted applications These sensors are available from Digi Key at www digikey com and additional information is available on the WEGO Tech FAQ on our website WIRE Wire supplied with most automotive accessories is usually un tinned copper with a low number of strands The unprotected copper in this inexpensive wire quickly oxidizes especially when in contact with dissimilar metals on terminals The low number of strands limits life in applications where flexing occurs We recommend the use of high quality industrial grade wire with tinned copper strands and a high strand count 18 20 AWG sizes can be used for all signal and low current applications 16 18 AWG is adequate for power and ground wiring Carol UL grade 1007 1015 wire is available from Digi Key P N Descriptio
6. Paw Daytona Sensors LLC Engine Controls and Instrumentation Systems Installation Instructions for WEGO 5 Dual Channel Wide Band Exhaust Gas Oxygen Sensor System CAUTION CAREFULLY READ INSTRUCTIONS BEFORE PROCEEDING OVERVIEW The WEGO 5 is a complete dual channel air fuel ratio AFR system with built in data logging It can be used as a standalone unit or interfaced to an engine management or data acquisition system by means of 0 5 volt analog AFR outputs or CAN data bus at up to 1 Mbps For CAN data bus applications please contact our tech support at 386 322 7390 Optional dual channel AFR gauges displays are also available refer to our website at www daytona sensors com for more details The WEGO 5 unit logs one hour of data at 10 samples second Data logged includes sensor 1 and sensor 2 AFR values engine RPM a 0 5V analog input for sensors such as throttle position or manifold pressure battery voltage and sensor diagnostics Data is downloaded with our WEGO 5 Log software by means of a built in USB interface Refer to the WEGO 5 Log software instructions for details The compact size and wide 11 18 volt supply range allows operation from small rechargeable batteries in a broad spectrum of applications The system uses low cost Bosch LSU 4 2 5 wire wide band oxygen sensors By utilizing miniature surface mount electronics technology digital signal processing techniques and a switching power supply for the sen
7. SES AND FUSE TAPS ATC series fuses and fuse holders commonly used for automotive applications are only available in 40 amp and lower ratings For high current applications we recommend the heavy duty 50 amp Littlefuse Maxi Fuse series available from Digi Key P N Description F1085 Maxi fuse block F1038 50 amp Maxi fuse SWITCHES All switches used in performance applications should be sealed Representative sealed toggle and rocker style switches available from Digi Key are listed below P N Description 480 2191 Honeywell SPDT toggle switch 360 2278 NKK SPDT rocker switch WEGO 5 9 2014 Page 11 RELIABLE CONNECTIONS TO EXISTING SIGNALS For some applications you may have to tap into existing signal wires on the vehicle We caution against using any of the so called vampire clips that make an insulation displacement connection These have proven very unreliable in racing applications They may even cause the original wire to fray and break We suggest soldering any connections to existing signals Use a stripping tool to cut through and push back about 1 4 of insulation at the spot on the original wire where you plan to make the connection Wrap several turns of the new wire around solder insulate with self vulcanizing electrical tape and use two cable ties to secure the splice as shown Regular electrical tape will tend to unravel Self vulcanizing electrical tape is available from Digi Key as their P N W213 S
8. UPPLIERS Suppliers referenced in the Appendix are listed in the table below Additional suppliers for connectors electronic tools mechanical hardware and test equipment are listed on our website at www daytona sensors com tech_tools htm Supplier Phone Website Digi Key 1 800 344 4539 www digi key com Mouser 1 800 346 6873 www mouser com Newark 1 800 463 9275 www newarkinone com State Wire 8 Terminal 1 800 922 6527 www statewire com Daytona Sensors LLC 933 Beville Road Suite 101 1 S Daytona FL 32119 386 322 7390 www daytona sensors com Page 12 WEGO 5 9 2014
9. ata format is SID CH1_LAMBDA_HI CH1_LAMBDA_LO CH2_LAMBDA_HI CH2_LAMBDA_LO CH1_SENS_ RES 2 SENS RES DIAG _CODE BAT_VOLTS Where SID is a customer assigned CAN standard identifier CH is an abbreviation for channel 1 or 2 CHN_LAMBDA_HI CHN_LAMBDA_LOW is a 16 bit binary digit scaled 1024 1 Lambda i e Lambda Data 1024 The minimum data value is 1CA 0 45 Lambda and the data value stays at 994 2 4 Lambda under very lean conditions until free air condition is reached at which point the data value jumps to 7FFF The unit will report zero Lambda data while cold or during diagnostic code conditions CHN_SENS_RES sensor resistance is an 8 bit value in ohms 80 ohms nominal significantly lower values indicate overheating DIAG_CODE has the lower nibble corresponding to channel 1 and the upper nibble corresponding to channel 2 with assignments CAUTION Racing gasoline containing lead will quickly degrade the sensors Under these conditions expected sensor life is less than 10 hours There is no warranty on sensors Daytona Sensors LLC 933 Beville Road Suite 101 1 S Daytona FL 32119 386 322 7390 www daytona sensors com 1 reported on channel 1 only threshold is 9v 2 reported on channel 1 only threshold is 18v Low battery voltage High battery voltage Sensor short circuit 3 Sensor open circuit 4 Sensor cold 5 BAT_VOLTS battery voltage is an 8 bit binary digit scaled 255 20
10. e 4 The power supply must be located in close proximity to the WEGO unit We recommend mounting the WEGO unit on a panel next to the dyno data acquisition system and then running extension cables out to the sensors in the dyno room Keep all power and ground connections as short as possible Follow the exact layout shown in Figure 4 Do not add additional terminal blocks or connectors to power or ground connections The power supply should remain on during operation of the WEGO The arming switch shown in Figure 4 is used in place of an ignition switch ona vehicle to cycle power to the WEGO To avoid loss of logged data always turn the arming switch off first and wait 5 seconds before turning the power supply off DYNO GROUNDING Improper grounding will cause serious problems The dyno frame or chassis must be connected to building electrical ground in accordance with National Electrical Code NEC requirements Vehicles operated on a chassis dyno will generate considerable electrostatic charge The vehicle must be grounded to the dyno frame while in operation You can use a length of 16 AWG wire with one end secured to the dyno frame and the other end equipped with a heavy duty alligator clip that is attached to the vehicle frame or other vehicle ground point Failure to ground the vehicle will lead to electrostatic discharge ESD across the WEGO sensor damaging the sensor and WEGO unit CAUTION To avoid damage to the WEGO a sec
11. e full capabilities of the WEGO 5 Depending on your vehicle type and engine control there are three possible sources for the RPM signal a High level signal on the Coil terminal of most inductive discharge type ignitions This includes most original equipment OE ignitions except coil on plug with integrated drive electronics For automotive distributorless or Harley Davidson single fire systems with multiple coils or coil packs you can use any one of the Coil signals Refer to the vehicle wiring diagram for details The Coil terminal will connect to an ignition module or engine control module ECM The Coil terminal will connect to switched 12V 386 322 7390 www daytona sensors com Page 2 b Tach signal preferred for best noise immunity The WEGO 5 is compatible with industry standard 12V square wave tach signals such as what would be used to drive an Autometer or similar aftermarket tach Most aftermarket capacitive discharge CD ignitions including the Daytona Sensors CD 1 MSD 6 and Crane HI 6 series have a tach output that you can use 1999 2003 Harley Davidson motorcycles with carbureted Twin Cam 88 engines have a tach output on pin 12 of the black ignition module connector Most 2001 and later Harley Davidson motorcycles with 36 pin Delphi fuel injection ECM have a tach output on pin 3 of the ECM connector Motorcycle and small engine CD capacitive discharge ignitions Many Japanese motorcycles and
12. es with catalytic converters The exhaust sniffers are constructed from materials that are readily available at any hardware store For more details download the Automotive Exhaust Sniffer Tech Note and Motorcycle Exhaust Sniffer Tech Note from our website at www daytona sensors com Daytona Sensors LLC 933 Beville Road Suite 101 1 S Daytona FL 32119 386 322 7390 www daytona sensors com Page 6 WEGO 5 9 2014 Figure 4 Typical Dyno Hookup for WEGO 5 7 A LH 139 XOV1a NMOH H1H N33H9 H LH GNNOHD 190 1 NMOHA dNNd 03H H1H N33H9 ALIHM LHOSN1S ol HOSNAS OL ALIHM 1 GNNOHD INdNl WALSAS NOILISINDOV vivd LNANI 1vN9IS GNNOHD YAMOd AH3LIVd YAMOd CAHOLIMS OTNv9 IH NVO 108100 2 HOSNAS INSLSAS LNdNI SOIWNY S 093M LNdNI NVO 7109 19 51 WNOIS INANI Wd 1H0d 981 YOSNAS YOSNAS 81 MOV1d 81 XOV 18 aN9 neel YAMOd HOLIMS N33H9 LAdLNO HLIM HOSN3S dV HO SdL 1109 HO 5 HOVL W93 OL SNOILISOd 13441 IWNDIS Wd oL gsn WEGO 5 9 2014 Daytona Sensors LLC 933 Beville Road Suite 101 1 S Daytona FL 32119 386 322 7390 www daytona sensors com Page 7 DYNO WIRING HOOKUP Refer to Figur
13. linder Reversion effects will be most noticeable at idle part throttle low RPM cruise and decel Excessive scavenging Turbo systems or tuned exhausts in combination with a high overlap camshaft profile can force unburned air and fuel mixture through the cylinder into the exhaust and cause an erroneous rich AFR indication Misfiring If the AFR is so rich that the engine misfires high levels of oxygen will remain in the exhaust gas and result in an erroneous lean indication GASOLINE ENGINE TUNING GUIDELINES Higher AFR values correspond to a leaner less fuel condition The practical operating range for most engines using gasoline fuel is from approximately 11 5 to 14 7 AFR Combustion of a stoichiometric mixture exactly enough air to burn all the fuel results in 14 7 AFR indication Automotive engines with catalytic converters operate near 14 7 AFR during cruise and idle Race engines usually require a richer mixture to limit cylinder head temperature and prevent detonation The table below lists reasonable AFR values for race engines without emission controls Daytona Sensors LLC 933 Beville Road Suite 101 1 S Daytona FL 32119 386 322 7390 www daytona sensors com Operating Mode Recommended AFR Cold Start first 30 sec 11 5 12 5 AFR 0 78 0 85 Lambda 12 8 13 5 AFR 0 87 0 92 Lambda Part Throttle Cruise 13 0 14 0 AFR 0 88 0 95 Lambda Wide Open Throttle 12 5 12 8 AFR normally aspirated
14. n C2040X 100 20 AWG wire 100 foot spool C2064X 100 18 AWG wire 100 foot spool C2104X 100 16 AWG wire 100 foot spool C2105X 100 14 AWG wire 100 foot spool Note replace X with color code B Black W White R Red G Green A Orange Y Yellow L Blue N Brown S Gray V Violet CRIMP TERMINALS High quality crimp terminals and a proper crimping tool are required to make reliable electrical connections Crimp terminals commonly sold in automotive and hardware stores have brittle vinyl insulation that easily cracks We recommend the use of high quality industrial grade nylon insulated crimp Daytona Sensors LLC 933 Beville Road Suite 101 1 S Daytona FL 32119 386 322 7390 www daytona sensors com terminals The following parts are available from Digi Key P N Description A27241 16 20 AWG 10 ring tongue terminal A27246 16 20 AWG 1 4 ring tongue terminal A27248 16 20 AWG 3 8 ring tongue terminal A27262 14 16 AWG 1 4 ring tongue terminal A27264 14 16 AWG 3 8 ring tongue terminal A27288 10 12 AWG 1 4 ring tongue terminal A27291 10 12 AWG 3 8 ring tongue terminal A0911 18 22 AWG 110 female quick disconnect terminal MNU18 187DFIK 18 22 AWG 187 female quick disconnect terminal 18 22 AWG 1 4 female quick disconnect terminal 14 16 AWG 1 4 female quick disconnect terminal MNU18 250DFIK MNU14 250DFIK A1069 16 22 AWG butt splice A1080 14 16 AWG butt splice A1086 10 12 AWG butt splice FU
15. onnect the WEGO 5 AFR outputs to 0 5V analog inputs on a data acquisition system OPERATION For more information about wide band oxygen sensors including the Bosch LSU 4 2 we suggest that you visit the Tech FAQ on our website at www daytona sensors com Figure 2 WEGO 5 Front Panel WEGO 5 Channel System Daytona Sensors LLC 933 Beville Road Suite 101 1 S Daytona FL 32119 386 322 7390 www daytona sensors com Figure 3 WEGO 5 Rear Panel The WEGO 5 has red status LEDs for each channel When power is turned on the LEDs blink at a slow rate until the corresponding sensor has reached normal operating temperature After installation the WEGO 5 requires free air calibration This should be done with the sensors dangling in free air The environment must be free of hydrocarbon vapors We suggest that you perform the free air calibration outdoors Turn the free air calibration trimpots on the WEGO 5 full counterclockwise Turn on power and wait for 60 seconds so the system can fully stabilize Then slowly turn each free air calibration trimpot clockwise until the corresponding LED starts flashing at a rapid rate Try to set each trimpot at the point where its LED just starts to flash The WEGO 5 includes internal diagnostics for abnormal battery voltage less than 11 volts or greater than 18 volts sensor open circuit and sensor short circuit conditions A fault condition causes the status LEDs
16. sor heater the WEGO 5 provides the same level of accuracy as lab systems costing thousands of dollars REPLACEMENT SENSORS AND ACCESSORIES The WEGO 5 uses standard Bosch LSU 4 2 sensors used on a VW production application Bosch P N 0 258 007 057 058 or VW P N 021 906 262B The proprietary VW connector is replaced with a smaller Deutsch DT 04 6P We offer replacement sensors with the Deutsch connector installed If you are testing multiple engines we also offer additional 18 x 1 5 mm weld nuts for sensor mounting and 18 x 1 5mm hex socket plugs that screw into the weld nuts and allow removing sensors after tuning Daytona Sensors LLC 933 Beville Road Suite 101 1 S Daytona FL 32119 386 322 7390 www daytona sensors com Some engines using CD capacitive discharge ignitions may require a special tach adapter for engine RPM data logging Please call our tech support at 386 322 7390 for details INSTALLATION 1 Turn off the ignition switch before proceeding 2 Select a convenient mounting location for the Bosch sensors In general the sensors should be mounted as close to the exhaust valves or exhaust manifold as practical When choosing a mounting location allow several inches clearance for the sensor wire harness The wire harness must exit straight out from the sensor Do not loop the harness back onto the sensor body The sensor responds to oxygen pressure Excessive backpressure will cause a reading error For t
17. to blink at the slow rate The WEGO 5 will start logging data once both sensors have reached normal operating temperature The unit stops logging data after any PC communications Data logging will not restart until power is cycled off and on again The unit stops logging data while a diagnostic code is set however the code is logged Refer to the software instructions for details WEGO 5 9 2014 Page 4 EXHAUST CONSIDERATIONS The WEGO 5 system may give inaccurate results in certain situations Excessive exhaust back pressure Wide band sensors are affected by back pressure Excessive back pressure causes exaggerated AFR indications under rich and lean conditions but has little effect at 14 7 AFR stoichiometric The WEGO 5 is intended to be used with a free flowing performance exhaust Overly restrictive stock mufflers may cause excessive back pressure under wide open throttle When used with a turbo system the sensors must be mounted downstream of the turbo Exhaust reversion Reversion is the term for a negative pressure wave that can suck ambient air back into the exhaust and cause an erroneous lean AFR indication Exhausts without mufflers such as open headers or drag pipes on motorcycles usually suffer from reversion effects and may not be suitable for use with the WEGO 5 Reversion effects will also occur with certain exhausts used on bagger style motorcycles where two pipes split off near the rear cy
18. urbocharged applications you must mount the sensors downstream of the turbo 3 For temporary use during dyno tuning you can mount the Bosch wide band sensors in place of the original equipment rear oxygen sensors after the catalytic converter You can also use sniffers in the tailpipe For permanent mounting 18 x 1 5 mm weld nuts must be welded onto the exhaust pipe After welding run an 18 x 1 5 mm tap through the threads Failure to clean the threads may result in sensor damage Note that most automotive muffler shops are familiar with oxygen sensor weld nut installation on custom pipes Do not install the sensors until after the free air calibration procedure described in the following section Always use an anti seize lubricant such as Permatex 133A on the sensor threads 4 Select a convenient mounting location for the WEGO 5 The unit is not sealed and must be mounted in a dry location away from sources of heat We recommend underdash mounting or use a dyno lab environment The unit is not intended for underhood mounting The unit can be secured by means of Velcro tape strips Use nylon tie wraps to secure the wire harness near the unit 5 Working with the clamping terminal blocks All connections to the WEGO 5 terminal blocks must be clearly identified either by means of distinct wire WEGO 5 9 2014 Page 1 10 Daytona Sensors LLC 933 Beville Road Suite 101 1 S Daytona FL 32119 colors Suggested colors
19. ure ground connection must be established between the vehicle and dyno chassis before connecting tach or analog signals Daytona Sensors LLC 933 Beville Road Suite 101 1 S Daytona FL 32119 386 322 7390 www daytona sensors com WEGO POWER REQUIREMENTS WEGO systems are intended for nominal 12 volt automotive applications Nominal 12 volt automotive electrical systems on alternator equipped vehicles typically operate at 13 8 14 4 volts while the engine is running The WEGO can operate from 9 0 to 18 0 volts WEGO units also feature low power consumption about 2 amps For small engine applications you can power the WEGO for over one hour from a 12 volt gel cell type rechargeable battery such as the type used for backup power in alarm systems Vehicles with nominal 12 volt total loss electrical systems no alternator can momentarily drop below the 9 0 volt minimum level when heavy loads such as fans or nitrous solenoids engage This will cause the WEGO to reset and result in a loss of data for 10 15 seconds Vehicles with nominal 16 volt electrical systems equipped with race type alternators may reach 18 6 volts while the engine is running The WEGO will shut off if the voltage exceeds 18 0 volts Call our tech support before attempting to install any WEGO system on a nominal 16 volt electrical system with an alternator WEGO 5 9 2014 Page 8 CAN DATA BUS CAN data is sent at 1 Mbps with 20 transmissions sec CAN d
20. volts i e Bat_Volts 20 x Data 255 If the WEGO 5 is the last device at the end of the CAN data bus install the CAN terminator jumper on the left side of the WEGO front panel For CAN data bus applications please contact our tech support at 386 322 7390 TROUBLESHOOTING FLOWCHART Follow the troubleshooting flowchart shown on the next page for each channel Experience has shown that most units returned for warranty are OK and another problem such as user error degraded sensors or bad power connections is later identified CAUTION WEGO 5 units are not sealed These units are intended for dash mounting or use in dry environments There is no warranty on units with moisture damage WEGO 5 9 2014 Page 9 Troubleshooting Flowchart NOTE ALL TESTS PERFORMED EE a WITH SENSORS IN FREE AIR DO STATUS LEDS SLOWLY BLINK WHEN POWER IS FIRST TURNED ON NO YES VERIFY 12V POWER ON RED WIRE DO STATUS LEDS CONTINUE SLOWLY VERIFY BLACK WIRES CONNECTED TO BLINKING 60 SECONDS AFTER POWER GROUND IS PROBLEM FIXED UP NO YES YES NO REPLACE WEGO DONE PERFORM FREE AIR CALIBRATION IS CALIBRATION SUCCESSFUL NO YES MEASURE VOLTAGE LEVEL ON RED REPLACE SENSOR S WIRE WITH DVM IS IT GREATER THAN IS PROBLEM FIXED 11 VOLTS NO YES YES NO REPLACE SENSOR S WEGO REQUIRES MINIMUM 11 REPLACE WEGO DONE IS PROBLEM FIXED VOLTS FIX UNDERLYING PROBLEM WITH VEHICLE ELECTRIC SYSTEM NO YES REPLACE WEGO DONE IS PROBLEM FIX
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