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2004 Ford Focus ZX3 2.3L MIL Lamp on, P0171
Posted to Ford Driveability on 2/27/2012 16 Replies

I have a code P0171 that keeps coming back, It can take a few days or weeks to come back. This problem has been ongoing for about 4 months.

I have check for vac leaks none found, check for vac leaks at PCV area, checked MAF sensor with lab scope and check sca...

16 Replies Received (View Replies)

  Related Documents & Media  2004 Ford Focus ZX3

 
Message Closed w/FIX

car Vehicle Data

2004 Ford Focus ZX3

VIN 3FAFP31Z34
Engine2.3 L / 4 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / EFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp on, P0171
OccursIntermittently

Trouble Codes

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

car Vehicle Data

2004 Ford Focus ZX3

VIN 3FAFP31Z34
Engine2.3 L / 4 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / EFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp on, P0171
OccursIntermittently

Trouble Codes

P0171Fuel System Too Lean (Bank 1)