Engine light

Tiny
JAKEVIEIRA
  • MEMBER
  • 1997 FORD THUNDERBIRD
  • V8
  • 2WD
  • AUTOMATIC
  • 118,275 MILES
Got 2 codes on my 1997 ford thunderbird xl 4.6 codes p0171 p0172
Monday, January 17th, 2011 AT 10:14 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
P0171-
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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Monday, January 17th, 2011 AT 10:18 PM

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