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2004 Ford F-150 FX4 5.4L MIL Lamp on
Posted to Ford Driveability on 2/14/2007 16 Replies

We have a 2004 F150 4wd truck in the shop with lean codes on both banks. P0171, and P0174. Freeze frame was set at 1200 rpm, 0 mph, 183'F ECT, and 22'F IAT, 54% load.

The problem we are having, (is not only that we cannot duplicate it at that rpm), but when ...

16 Replies Received (View Replies)

  Related Documents & Media  2004 Ford F-150 FX4

 
Message Closed

car Vehicle Data

2004 Ford F-150 FX4

VIN 1FTPX14564
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursHot, Cruise
Misc.Extended Cab 4X4

Trouble Codes

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

car Vehicle Data

2004 Ford F-150 FX4

VIN 1FTPX14564
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursHot, Cruise
Misc.Extended Cab 4X4

Trouble Codes

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