
2004 Ford F-150 FX4 5.4L MIL Lamp on, Slight lack of power
Customer complaint is only the check engine light. Found the two lean codes only (P0171 and P0174). They were NOT complaining of a lack of power, it just seems that way to me. It is a lifted vehicle with large tires, so that may be the culprit. The long term f...
FIX posted 7/29/2014
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Message Closed w/FIX
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VIN | 1FTPW14534 |
Engine | 5.4 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp on, Slight Lack of Power |
Occurs | Always |
Trouble Codes
P0171 | Fuel System Too Lean (Bank 1) |
P0174 | Fuel System Too Lean (Bank 2) |
Message Closed w/FIX
Vehicle Data
2004 Ford F-150 FX4
VIN | 1FTPW14534 |
Engine | 5.4 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp on, Slight Lack of Power |
Occurs | Always |
Trouble Codes
P0171 | Fuel System Too Lean (Bank 1) |
P0174 | Fuel System Too Lean (Bank 2) |