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1999 Ford Explorer XL 4.0L MIL Lamp on
Posted to Ford Driveability on 12/14/2015 18 Replies

Code p0171 and p 0174. Need help. Replaced both upper and lower intake gaskets. Still the same codes

18 Replies Received (View Replies)

  Related Documents & Media  1999 Ford Explorer XL

 
Message Closed w/FIX

car Vehicle Data

1999 Ford Explorer XL

VIN 1FMZU32X7X
Engine4.0 L / 6 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

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

car Vehicle Data

1999 Ford Explorer XL

VIN 1FMZU32X7X
Engine4.0 L / 6 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

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