So while I was driving yesterday home at night, in the middle of the freewy my engine light came on. It was still driving fine there was nothing weird about it. And today when I went to school it was still on. I was planning on taking it to my friend to diagnose it but tonight when I got of work it's no longer on. What can it be and wat should I check for? Thanks for any help
The check engine light comes on when something changes from "normal", they do come on and go off sometimes. Next time you see it come up just have someone pull the code off of it and that will let you know exactly why its coming on.