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1991 Mitsubishi Galant Question: check engine light

 

Question

milkeefer, 2.0L 4 Cylinder, Needham, MA, August 14, 2010, 11:02
 Rookie

Why does "the check engine" light come on but no codes come up with a diagnostic check. Light was shut off but came back on within minutes of running. Car has 120,000 mi.

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  • Answer #1

    Bret Bodas from RepairPal Test Shop, August 14, 2010, 12:13
     Master

    If the idle speed is too low this can happen, does the light go out if you rev the engine up?

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    Visitor, August 16, 2010, 06:47

    No, it just stays on all of the time.

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  • Medium-star Best Answer
    Visitor, March 28, 2011, 09:13

    Make sure your gas cap is on tight and makes a good seal. We've experienced this two times and both times it was corrected by tightening the cap better.

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