
2005 Ford F-150 FX4 5.4L MIL Lamp on
truck sets lean codes. fuel trims are around 8 to 10 long term at idle and around 15-18 at full throttle. the long term goes to 30 when cruising with throttle at 7 to 10% just past closed throttle. we have tried maf sensor, smoke test, fuel pressure test, and ...
FIX posted 12/19/2015
![]()
iATN Members:
Login to view full TechHelp request Auto Repair Pros: Join iATN to read this TechHelp request Vehicle Owners: Find a nearby iATN member to repair your vehicle (View Replies)22 Replies Received(Hide Replies)22 Replies Received
|
Message Closed
|
VIN | 1FTPW14575 |
Engine | 5.4 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Cruise |
Trouble Codes
P0171 | Fuel System Too Lean (Bank 1) |
P0174 | Fuel System Too Lean (Bank 2) |
Message Closed
Vehicle Data
2005 Ford F-150 FX4
VIN | 1FTPW14575 |
Engine | 5.4 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Cruise |
Trouble Codes
P0171 | Fuel System Too Lean (Bank 1) |
P0174 | Fuel System Too Lean (Bank 2) |