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2007 Chevrolet Silverado 2500 HD WT 6.0L MIL Lamp on
Posted to GM Driveability on 1/20/2021 25 Replies

This one has me stumped at the moment. The fuel trims go positive when accelerating and at idle all is well. The O2's drop to 0 on acceleration. It appeared to be fuel delivery issue but now it has a new fuel pump assembly, good volume and pressure. The MA...

25 Replies Received (View Replies)

  Related Documents & Media  2007 Chevrolet Silverado 2500 HD WT

 
Message Closed w/FIX

car Vehicle Data

2007 Chevrolet Silverado 2500 HD WT

VIN 1GCHK24K67
Engine6.0 L / 8 cyl / GAS
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursOn Accel

Trouble Codes

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

car Vehicle Data

2007 Chevrolet Silverado 2500 HD WT

VIN 1GCHK24K67
Engine6.0 L / 8 cyl / GAS
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursOn Accel

Trouble Codes

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