ENGINE LIGHT ON

2001 Chevrolet Impala

Tiny

Ed

November, 16, 2010 AT 9:52 PM

Chev 2001 impala engine light code P0171 system lean what is the problem and how to repair ir

FOUND 17085 RELATED QUESTIONS

1 Answer

Tiny

rasmataz

November, 16, 2010 AT 10:40 PM

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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