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2006 Ford F-150 FX4 5.4L MIL Lamp on
Posted to Ford Driveability on 8/25/2010 14 Replies

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...

14 Replies Received (View Replies)

  Related Documents & Media  2006 Ford F-150 FX4

 
Message Closed w/FIX

car Vehicle Data

2006 Ford F-150 FX4

VIN 1FTPW14556
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)
Message Closed w/FIX

car Vehicle Data

2006 Ford F-150 FX4

VIN 1FTPW14556
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)