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1996 Chevrolet K1500 Cheyenne 5.7L Poor Fuel Economy, MIL Lamp on
Posted to GM Driveability on 11/29/2000

Oh gods of all auto repair, help!

This vehicle is setting lean codes for both banks, at idle the block lean long term will head into the 150 range.

I have tried the following, different MAF sensor, pcv valve, unhooking MAF and running on MAP, different MAP s...

  Related Documents & Media  1996 Chevrolet K1500 Cheyenne

 
Message Closed w/FIX

car Vehicle Data

1996 Chevrolet K1500 Cheyenne

VIN 1GCEK19R9T
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Fuel Economy, MIL Lamp On
OccursIdle

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)
Message Closed w/FIX

car Vehicle Data

1996 Chevrolet K1500 Cheyenne

VIN 1GCEK19R9T
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Fuel Economy, MIL Lamp On
OccursIdle

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)