Trouble code: P0171

Tiny
TED6620
  • MEMBER
  • 2006 TOYOTA COROLLA
  • 92,000 MILES
What items do I need to check and how do I repair them?
Sunday, January 15th, 2012 AT 5:26 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Could be one of the below-lean fuel condition

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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Sunday, January 15th, 2012 AT 6:01 PM

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