car idles so low it almost stalls code po171

2002 MAZDA PROTEGE
180,000 MILES
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RIPPA TIM
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  • 1 POST
when car is stopped and idling it will idle so low that it almost stalls but corrects its self obd code po171 pops up
Jan 30, 2012 at 8:56 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
P0171 lean condition/ probable causes:

https://www.2carpros.com/articles/repair-lean-mixture-codes-p0171-or-p0174-on-some-manufacturers

1.Vacuum leaks

2.EGR and PCV valve.

3.Low fuel pressure.

4.Dirty fuel injectors.

5.Mass Air Flow Sensor.

6.Oxygen Sensor.


Jan 30, 2012 at 10:55 PM
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