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2005 Chevrolet Silverado 1500 5.3L Misfire
Posted to GM Driveability on 1/13/2010 5 Replies

Fuel trim bank 1 is stuck at +25% WITH IGNITION ON and engine off. I have dis-connected battery and tried again, same results. STFT are at 0 on both banks.

Plugs are black with soot on bank 1, beautiful on bank 2, cant find any intake leaks from the outside, ...

5 Replies Received (View Replies)

  Related Documents & Media  2005 Chevrolet Silverado 1500

 
Message Closed w/FIX

car Vehicle Data

2005 Chevrolet Silverado 1500

VIN 1BGTYUII66
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMisfire

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

2005 Chevrolet Silverado 1500

VIN 1BGTYUII66
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMisfire

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0300Multiple Misfire Detected