
2004 GMC Sierra 1500 SLE 5.3L Excessive Emissions, Poor Idle Quality
Truck came in with no reverse. I drove it into the shop and had a tech replace the trans. Since then the truck will barely idle once in closed loop. Fuel trims go to +55 upstream O2's read 0 MV and down stream are at 950 MV. I tried a known good MAF and a MAP ...
FIX posted 7/23/2015
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Message Closed w/FIX
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VIN | 2GTEK19T44 |
Engine | 5.3 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Excessive Emissions, Poor Idle Quality |
Occurs | Always |
Misc. | 70000 on Engine |
Trouble Codes
P0171 | Fuel System Too Lean (Bank 1) |
P0174 | Fuel System Too Lean (Bank 2) |
Message Closed w/FIX
Vehicle Data
2004 GMC Sierra 1500 SLE
VIN | 2GTEK19T44 |
Engine | 5.3 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Excessive Emissions, Poor Idle Quality |
Occurs | Always |
Misc. | 70000 on Engine |
Trouble Codes
P0171 | Fuel System Too Lean (Bank 1) |
P0174 | Fuel System Too Lean (Bank 2) |