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You said you replaced the ckps, correct? The ckps is located near the bell housing on the opposite side of the engine from the timing belt, as indicated by the alldata diagram. If vehicle is still running rough after repair, check your timing and make sure timing didnt jump. I had a kia sedona recently that was throwing codes for a ckps, but none to indicate that the cam crank correlation was actually out. Come to find out timing was several teeth out. If timing is good, I would check throttle body itself; kia has a lot of throttle body issues