cold start on this car is set by setting the throttel position switch to 0.0degrees/% the target idle speed is 850rpm when warm and fast idle is 1150rpm. and the car must be connected to a computer to set the ecu to static run so the adjustments can be made. how ever high cold start idle on these cars is normal as i have the same car and have plugged it to my lap top usining Hyundai's diaog software (HI-SCAN PRO) and have set every thing to Hyundai spec with no change.