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1999 Ford Ranger XL 3.0L Lean fuel codes
Posted to Ford Driveability on 5/12/2016 11 Replies

The truck came in for a CEL. Codes p0171 and p0174 and p0460 were present. I tested fuel pressure and it was at 53psi. tested the O2 sensors and found all three sensors were stuck at 800mv. When I graph the sensors with my scanner the voltage stays constant. I...

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  Related Documents & Media  1999 Ford Ranger XL

 
Message Closed w/Summary

car Vehicle Data

1999 Ford Ranger XL

VIN 1FTZR15V1X
Engine3.0 L / 6 cyl / FLEX
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD-II Compliant
SymptomsLean Fuel Codes
OccursAlways

Trouble Codes

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

car Vehicle Data

1999 Ford Ranger XL

VIN 1FTZR15V1X
Engine3.0 L / 6 cyl / FLEX
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD-II Compliant
SymptomsLean Fuel Codes
OccursAlways

Trouble Codes

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