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2006 Ford F-150 FX4 5.4L MIL Lamp on
Vehicle came in with a check engine light. P0171 p0174 lean both banks. Engine has aftermarket aem cold air intake. Customer claims it has been on since new without a problem. My long term fuel trims are maxed out +25. I have installed a fuel pressure gauge in...
FIX posted 9/9/2010
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Message Closed w/FIX
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14 Replies Received
14 Replies Received
Related Documents & Media | VIN | 1FTPW14556 |
| Engine | 5.4 L / 8 cyl / GAS |
| 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) |
Message Closed w/FIX
Vehicle Data
2006 Ford F-150 FX4
| VIN | 1FTPW14556 |
| Engine | 5.4 L / 8 cyl / GAS |
| 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) |
Video