CEL on for no apparent reason

Asked by Mar 11, 2017 at 09:49 AM about the 2004 Mitsubishi Montero Limited 4WD

Question type: Maintenance & Repair

I have an 04 MIT. Montero. The CEL is on. I've changed the
oil, plugs, timing belt. Had it turned off 3 times.  What in the
world else? No diagnostics come up either. Is this an o2
sensors?

3 Answers

263,795

CEL never comes on for no reason. No codes? Strange. Wait till the light comes on again and test. Maybe try another code reader?

1 of 1 people found this helpful.
72,365

Sounds like the circuit for the check engine light is shorted to ground or the PCM (computer) is bad. HTH. -Jim

Ok guys, my mistake it was the SES light. Quick diagnosis at autozome. Emission leak (small) so I've started with the gas cap. I had the light turned off. So I guess we will sread in 50 miles or so...

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