Check engine light -- What is going on?

[jas142]

Hey, been a long time since I've been on stangnet haha..

Anyway, 04 Mustang GT. I've had a UPR offroad x pipe for the last 20,000 miles (and year a half). I have mil elims and have never had a problem with the SES light. It came on once in the past and went back off in a few days.

About a week ago it came on. Thought maybe it was a bad tank of gas but the light is still on.

Any ideas? Did my MIL Elim's die or is it something else? How would I find out?

Thank you

 

[DTNODYA]

Go by an autozone or if you have a code reader, pull the codes and post them ...

That way you will know if its the MIL's or not ... but you might want to check the plug/harness for the MIL's to make sure one isn't loose or something.

 

[CanadaStang]

Go by an autozone or if you have a code reader, pull the codes and post them ...

That way you will know if its the MIL's or not ... but you might want to check the plug/harness for the MIL's to make sure one isn't loose or something.

What he said^^