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2007 GMC Sierra 1500 WT 5.3L Excessive Emissions, MIL Lamp on
MAF replaced with harness smoked intake-found no leaks come off idle fuel trims are great- idle engine long term go high short term are perfect. gotta have a vacuum leak somewhere!!!!! pulled upper intake manifold -found gaskets were deformed. problem still th...
FIX posted 2/1/2015
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Message Closed w/FIX
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15 Replies Received
15 Replies Received
Related Documents & Media | VIN | 2GTEK13M57 |
| Engine | 5.3 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / SEFI |
| Emissions | OBD-II Compliant |
| Symptoms | Excessive Emissions, MIL Lamp On |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0172 | Fuel System Too Rich (Bank 1) |
| P0449 | PCM Internal Fault |
Message Closed w/FIX
Vehicle Data
2007 GMC Sierra 1500 WT
| VIN | 2GTEK13M57 |
| Engine | 5.3 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / SEFI |
| Emissions | OBD-II Compliant |
| Symptoms | Excessive Emissions, MIL Lamp On |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0172 | Fuel System Too Rich (Bank 1) |
| P0449 | PCM Internal Fault |
Video