Mechanics

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2001 Chevrolet Impala • 6 cylinder FWD Automatic • 120,000 miles

Chev 2001 impala engine light code P0171 system lean what is the problem and how to repair ir
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Ed
November 16, 2010.




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.

Tiny
Rasmataz
Nov 16, 2010.


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