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2004 Chevrolet Tahoe LS 5.3L MIL Lamp on
I have long term fuel trims that climb to 23-25 rapidly even right after a reset. These fuel trims stay there at all rpm's and load ranges. I'm thinking I have a logic problem in the PCM Fuel tests 10% alcohol and gravity test is normal. PCM data pid reads 10%...
FIX posted 7/11/2014
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Message Closed w/FIX
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12 Replies Received
12 Replies Received
Related Documents & Media | VIN | 1GNEK13Z94 |
| Engine | 5.3 L / 8 cyl / FLEX |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0174 | Fuel System Too Lean (Bank 2) |
| P0300 | Multiple Misfire Detected |
Message Closed w/FIX
Vehicle Data
2004 Chevrolet Tahoe LS
| VIN | 1GNEK13Z94 |
| Engine | 5.3 L / 8 cyl / FLEX |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0174 | Fuel System Too Lean (Bank 2) |
| P0300 | Multiple Misfire Detected |
Video