I am getting a P0171 code on my 2006 VW Jetta 2.5.

Tiny
TRAL999
  • MEMBER
  • 2006 VOLKSWAGEN JETTA
  • 70,000 MILES
I have changed the Mass Air Flow sensor and the air filter. THe light is still coming on. Not sure where to go next.
Saturday, February 25th, 2012 AT 9:40 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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Saturday, February 25th, 2012 AT 9:42 PM

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