CHECK ENGINE LIGHT

  • Tiny
  • leonard t hansen
  • 1998 Ford Explorer
  • 6 CYL
  • 2WD
  • manual
  • 72,000 miles

On engine code# p0171 p0174. What needs to done?

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Wednesday, November 17th, 2010 AT 9:30 PM

1 Reply

  • Tiny
  • rasmataz
  • Member

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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Wednesday, November 17th, 2010 AT 11:26 PM

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