2000 Mazda MPV CEL on

2000 MAZDA MPV
186,000 MILES • 6 CYL • 2WD • AUTOMATIC
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IB42
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  • 1 POST
The code retrieved by Autozone and Advance Auto Parts is P0171. 'Running lean bank1.
I don't want to replace the MAF sensor without being certain that's the problem. Could it be the PCV valve or something else? Car runs great, new plugs , wires and intake manifold gasket. The light came on after this work was done.
Apr 21, 2010 at 3:23 AM
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RASMATAZ
  • CAR REPAIR CONTRIBUTOR
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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.
Apr 24, 2010 at 11:24 PM
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