1999 Ford Windstar to lean

Tiny
JOEBME
  • MEMBER
  • 1999 FORD WINDSTAR
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 200,000 MILES
Obd codes P0171-P0174 to lean on banks 1 and 2. How do I fix this?
Tuesday, August 10th, 2010 AT 10:11 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Lean fuel condition could be caused by one of the following below:

1. Vacuum leaks
2. EGR and PCV valve.
3. Low fuel pressure.
4. Dirty fuel injectors.
5. Mass Air Flow Sensor.
6. Oxygen Sensor.
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Tuesday, August 10th, 2010 AT 10:34 PM

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