× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
2004 Ford F-150 FX4 5.4L MIL Lamp on
Posted to Ford Driveability on 12/20/2012 16 Replies

2004 ford f150 5.4 came in with a cel. Scan revealed a p0171, system lean bank 1. Looked at fuel trims on my scan tool. Fuel trims showed ltft bank one pinned at thirty at idle. All others were plus or minus 5. When vehicle is driven all fuel trims are normal....

16 Replies Received (View Replies)

  Related Documents & Media  2004 Ford F-150 FX4

 
Message Closed w/Summary

car Vehicle Data

2004 Ford F-150 FX4

VIN 1FTPX14534
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / sefi
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursIdle

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
Message Closed w/Summary

car Vehicle Data

2004 Ford F-150 FX4

VIN 1FTPX14534
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / sefi
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursIdle

Trouble Codes

P0171Fuel System Too Lean (Bank 1)