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International Automotive Technicians Network
1989 Chevrolet K2500 Cheyenne 5.7L Poor Idle Quality
Posted to GM Driveability on 9/25/2001 17 Replies

Hi Everyone, This truck is running so rich that I have to disconnect the brake booster vacuum hose just to keep it going. The only code that it sets is code 45, O2 sensor rich. The other scan data looks ok. It hasn't had a tune up in a LONG time so I tuned it,...

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  Related Documents & Media  1989 Chevrolet K2500 Cheyenne

 
Message Closed w/FIX

car Vehicle Data

1989 Chevrolet K2500 Cheyenne

VIN 1GCFK24KXK
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / TBI
SymptomsPoor Idle Quality
OccursAlways

Trouble Codes

45Oxygen sensor rich
Message Closed w/FIX

car Vehicle Data

1989 Chevrolet K2500 Cheyenne

VIN 1GCFK24KXK
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / TBI
SymptomsPoor Idle Quality
OccursAlways

Trouble Codes

45Oxygen sensor rich