check engine light on but runs fine

[Ray McIntireJr]

The check engine light came on yesterday when I was leaving for work but it's still running fine, like nothing was wrong. All I did to it yesterday was change the oil filter and add some sea-foam to the crankcase( I think I did add too much though, as per the instructions on the bottle anyway) and added some 50/50 mix coolant to the radiator and resevoir. Any ideas what it may be? Haven't had a chance to check anything out yet. :huh:

 

[Kevin Palmer]

It can be one of literally a hundred of things.



Get the code pulled and then post the number, then we will be able to help you better..

 

[Jonathon Lee]

number one thing it seems to flag for people when nothing seems wrong is the evap system, generally the fuel cap.

 

[Ray McIntireJr]

it's got a dummy light for that but it isn't on. I unhooked the battery cable today, we'll see if ithat does anything.