Answers: Sorry you get so many lame answers. Check engine lights are for relaying an emission fault. There are several things that can turn them on. O2 sensors, EGR, etc. Go to an auto parts store like Auto Zone, O'rielly's, etc. Most will check it for free and narrate you exactly what the fault code is.
Its a 13 year dated Hyundai.
That's your problem
With a Hyundai Excel check engine light comes on could be anything and everything and most probable is everyting.
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