2003 Mitsubishi Eclipse

2003 MITSUBISHI ECLIPSE
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BLUE ANGEL
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Engine Performance problem
2003 Mitsubishi Eclipse 4 cyl Front Wheel Drive Automatic

It has a code po171, system too lean bank 1 what do I replace to fix this
Aug 26, 2009 at 9:11 PM
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JACOBANDNICKOLAS
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It sounds like you have a vaccuum leak. Listen for a sucking sound, try to locate it then repair it. Most likley a hose loose. If no problems are found, I would move to the O2 sensor for bank 1. However, I do feel it is a vacum leak.

Let me know what you find.
Aug 26, 2009 at 9:45 PM
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