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1993 Chevrolet K1500 Cheyenne 5.7L Excessive Emissions
Posted to GM Driveability on 8/6/2008 9 Replies

Thank you in advance for your help, This truck has an o2 sensor circuit that will not get near 800mV no matter how rich I make the fuel mixture. I disconnect the harness and connect one hand to the battery positive and the other hand to wiring harness going to...

9 Replies Received (View Replies)

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car Vehicle Data

1993 Chevrolet K1500 Cheyenne

VIN 2GBEK19K4P
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / tbi
Emissionsfederal
SymptomsExcessive Emissions
OccursAlways
Message Closed

car Vehicle Data

1993 Chevrolet K1500 Cheyenne

VIN 2GBEK19K4P
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / tbi
Emissionsfederal
SymptomsExcessive Emissions
OccursAlways