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2003 Ford F-150 Lariat 4.6L Poor Idle Quality, Misfire, Lean/rich
Prior repair could be important to fix. We did have cams locked down before replacing timing chains. Engine vacuum is good. Fuel pressure is good. Motorvac performed after codes set. LTFT B1 was about 22-25, B2 was about -20. Numbers on left side {B2} improved...
FIX posted 7/14/2006
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Related Documents & Media | VIN | 2FTRX18WX3 |
| Engine | 4.6 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Misfire, Lean/Rich |
| Occurs | Idle |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0175 | Fuel System Too Lean (Bank 2) |
| P0306 | Cylinder 6 Misfire Detected |
Message Closed w/FIX
Vehicle Data
2003 Ford F-150 Lariat
| VIN | 2FTRX18WX3 |
| Engine | 4.6 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Misfire, Lean/Rich |
| Occurs | Idle |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0175 | Fuel System Too Lean (Bank 2) |
| P0306 | Cylinder 6 Misfire Detected |
Video