I have a 99 durango with a 5.9L that has 95k miles, auto trans.,the vehicle was running well when the check engine light came on. i took it to checker and the put a diog. on it which told them that the idle control motor was faulty. i replaced it and still the light was on. i then performed the resrt by driving at 40 mph for about 5 mi. still light was on and it starts hard. somtimes with high idle.

PLEASE HELP..