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2004 Lincoln Navigator 5.4L MIL Lamp on
Hello, Has anyone ever seen short term fuel trims normal and long term fuel trims at 30%. I have smoked the intake system, brake booster,pcv no vacuum leaks found,Updated the pcm with new calibration file cleared kam numerous times to no avail..
FIX posted 5/6/2020
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Related Documents & Media | VIN | 5LMFU27R24 |
| Engine | 5.4 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / EFI |
| 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) |
Message Closed
Vehicle Data
2004 Lincoln Navigator
| VIN | 5LMFU27R24 |
| Engine | 5.4 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / EFI |
| 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) |
Video