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2003 Ford F-150 XLT 5.4L Poor Idle Quality, Misfire, MIL Lamp on
Need help on a f150. Codes are 171 and 175. Rich and lean on opposite banks. Replaced coils and plugs to no result. Replace both front o2 sensors. No result. Fuel trim is a minus 24% and a positive 22%. Compression test was between 165-175 all cylinders. Don't...
FIX posted 4/5/2011
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Message Closed w/FIX
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Related Documents & Media | VIN | 1FTRX18L03 |
| Engine | 5.4 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / PORT INJECTD |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Misfire, MIL Lamp On |
| Occurs | Always, Cold, Under Load, Idle |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0175 | Fuel System Too Lean (Bank 2) |
Message Closed w/FIX
Vehicle Data
2003 Ford F-150 XLT
| VIN | 1FTRX18L03 |
| Engine | 5.4 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / PORT INJECTD |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Misfire, MIL Lamp On |
| Occurs | Always, Cold, Under Load, Idle |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0175 | Fuel System Too Lean (Bank 2) |
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