» » »

Mitsubishi Q&A

Ask Your Question

1991 Mitsubishi Galant Question: check engine light



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

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.

2 Answers
Flag This
  • Answer #1

    August 14, 2010, 15:13

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

    Flag This
  • Reply

    Visitor, August 16, 2010, 09:47

    No, it just stays on all of the time.

    Flag This
  • Medium-star Best Answer
    Visitor, March 28, 2011, 12:13

    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.

    Flag This