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emission control system malfunction on 2004 Kia Sorento

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
the emission control system of our car is malfunctioning. the light indicator is on.
(3) Answers
Our check engine light went on in our 2004 Kia Sorento. Turned out to be a misfire of the 4th cylinder. Mechanic reset the light, hasn't come on since. I believe you can go to Advanced Auto and they have a code reader there. Try to find an honest mechanic. Best of luck!
This could be for a variety of reasons, as the emission control system is very complex. Take a look at RepairPal's article on the Check Engine Light and emissions control: http://repairpal.com/check-engine-light

You will most likely need a professional diagnosis.