Even if you use your own code reader to see what may be causing the ... The check engine light remains on. If your check engine light stays on continuously and there are no noticeable problems with ...

The check engine light (CEL) comes on when the on-board diagnostics ... The OBD II system stores diagnostic trouble codes (DTCs) in the ECM. DTCs help identify which offending part, component ...

This could be anything from a small issue, like the loose gas cap, to more severe engine malfunctions. Besides the warning ...

But no matter what the light looks like in your car ... Although most check-engine malfunctions will require a code reader to diagnose, something simple to try is to make sure your gas cap ...