Check engine light.
Battery (3).
Alternator.
Idle motor/throttle body assembly.
Tires.
PC valve.
PCM (main computer).
Buying this car was the worst mistake that I ever made. For details of my bad experiences with my Kia and for more horror stories from unsatisfied Kia owners, please check out the following website:
http://members.tripod.com/aiki_joe/i_hate_kia
I too have a 97 Kia Sephia that I have had numerous problems with. I have tried to file for lemon law and was denied. I have tried to contact Kia and all they can tell me to do is go have a diagnostics test done at the dealership (the same dealership that hasn't been able to find the problem since I drove it off the lot). I refuse to pay any more money. My personal mechanic and another mechanic have both told me that the computer needs to be replaced. I do not drive the car out of the city out of fear of what it might do today. I need some help in resolving my problem, any suggestions?