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2001 Ford F-150 XL 4.2L Excessive Emissions, MIL Lamp on
Posted to Ford Driveability on 10/21/2014 24 Replies

I have this problem truck here. I'm usually a BMW Mercedes guy so this one got me stumped. I need help from someone that really knows Ford. Please read everything I checked/changed or tested before giving me your valuable input.

Bank 1 LTFT 14, Bank 2 LTFT -...

24 Replies Received (View Replies)

  Related Documents & Media  2001 Ford F-150 XL

 
Message Closed w/Summary

car Vehicle Data

2001 Ford F-150 XL

VIN 1FTZX17221
Engine4.2 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, MIL Lamp On
OccursAlways

Trouble Codes

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

car Vehicle Data

2001 Ford F-150 XL

VIN 1FTZX17221
Engine4.2 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, MIL Lamp On
OccursAlways

Trouble Codes

P0171Fuel System Too Lean (Bank 1)