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1990 Chevrolet C2500 Cheyenne 5.7L Poor Idle Quality
Posted to GM Driveability on 5/5/2017 23 Replies

All of the sensors monitor fine on datastream. Oxygen sensor reading lean but reading. When vehicle is cold it idles fine and when it warms up and goes into a closed loop it will not idle and quit running. It will restart but quit running right away. When I di...

23 Replies Received (View Replies)

  Related Documents & Media  1990 Chevrolet C2500 Cheyenne

 
Message Closed w/FIX

car Vehicle Data

1990 Chevrolet C2500 Cheyenne

VIN 1GCFC24K3L
Engine5.7 L / 8 cyl / GAS
Trans3-speed Automatic
DeliveryFuel Injection / TBI
EmissionsUS FED
SymptomsPoor Idle Quality
OccursHot

Trouble Codes

44Lean exhaust
Message Closed w/FIX

car Vehicle Data

1990 Chevrolet C2500 Cheyenne

VIN 1GCFC24K3L
Engine5.7 L / 8 cyl / GAS
Trans3-speed Automatic
DeliveryFuel Injection / TBI
EmissionsUS FED
SymptomsPoor Idle Quality
OccursHot

Trouble Codes

44Lean exhaust