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1999 Ford Ranger XLT 4.0L Poor Idle Quality, Hesitation, Poor Fuel Economy, MIL Lamp on
Posted to Ford Driveability on 6/23/2009 17 Replies

I have this 99 ranger with a 4.0l in my shop and the check engine light keeps coming on with lean codes on both banks. From doing a little research I was pointing twords the lower intake and injecter gaskets but after checking fuel pressure im now thinking a w...

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  Related Documents & Media  1999 Ford Ranger XLT

 
Message Closed w/FIX

car Vehicle Data

1999 Ford Ranger XLT

VIN 1FTZR15X1X
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Hesitation, Poor Fuel Economy, MIL Lamp On
OccursCold, Under Load, on Accel, Cruise

Trouble Codes

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

car Vehicle Data

1999 Ford Ranger XLT

VIN 1FTZR15X1X
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Hesitation, Poor Fuel Economy, MIL Lamp On
OccursCold, Under Load, on Accel, Cruise

Trouble Codes

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