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1999 Ford F-150 4.2L MIL Lamp on
Posted to Ford Driveability on 3/17/2004 22 Replies

Hi guys' I have this 99 f150 that seems to be running lean only for the cust.. It has been in twice for 171 & 174 codes for lean condition. I have cleaned the MAF and checked all the basics. When I drive it, all seems good,but when the cust gets it back, these...

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  Related Documents & Media  1999 Ford F-150

 
Message Closed w/FIX

car Vehicle Data

1999 Ford F-150

VIN 1FTZX172OX
Engine4.2 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursIntermittently

Trouble Codes

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

car Vehicle Data

1999 Ford F-150

VIN 1FTZX172OX
Engine4.2 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursIntermittently

Trouble Codes

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