well I bought this 02 kia rio 105,563 miles and also have an 01 model kia rio here that runs good well anyway this 02 kia rio I bought it having this idle problem si trying to figure this out I tried parts of the 01 model and so far I've changed the 02 sensors,mass air flow sensor, coils,wires,spark plugs, coolant temp sensor, camshaft position sensor, crankshaft position sensor, and still no change and I just ordered 2 new throttle body mounting gaskets and gonna swap out the complete throttle body assembly's and the iat sensor tomorrow or Saturday providing oreiilys gets the gaskets in. so guys just to ask do ya'll have any outher ideas? I checked the compression and I have 180 psi on all 4 cylinders and checked the fuel pressure and have 50 psi so what do ya'll think? also in kistechinfo I have the throttle body off and it says on the tp sensor on terminals 1 and 2 it should be 1.6-2.4k ohms closed throttle and change as I increase rotation of the throttle plate well it dosent change. which leads me to believe the tp sensor maybe bad. but if ya'll have any outher ideas would be appreciated??