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Old 05-02-2008, 10:15 PM   #3
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Join Date: Apr 2008
Posts: 19
Default Re: UN-Modded :) 2006 Ion-2 throwing P0171

P0171 according to the Autozone printout means;

Definition; Fuel Trim bank one condition

The computer has recognized a rich or lean condition on one engine bank only.

What is an engine bank? Is that what they're calling cylinders these days?

Probably causes;

1) If bank one and bank two codes set together suspect fuel pressure or MAF. (that doesn't seem to be the case - only one code)
2) Oxygen sensor defective
3) Ignition misfire - repair.
4) Fuel injector problem.

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