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Ford Contour LX P0171

Tiny
JJBOY
  • MEMBER
  • 1999 FORD CONTOUR
  • 100,000 MILES
This code shows up for the past 2 years. Car is running great. During this time, I have replaced O2 sensor, clean MAF sensor, smoke test with no leak. No one are able to find what is causing this code to come up.


I used the OBDCOM software to save the sensors when I was driving the car. Please let me know if you cold find any problem. Thanks


http://www.youtube.com/watch?v=9X6QcqFz9p0
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Monday, October 24th, 2011 AT 8:29 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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Wednesday, October 26th, 2011 AT 4:16 AM

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