Jeffery_01

Mikekasual

Check into the MAF and Throttle position sensor

wbrockstar

I suggest using carb cleaner to clean the iac valve and its passages thoroughly.After filling the passages with cleaner,lay the iac so that the passages are facing up and let it sit for 5-10 minutes so the cleaner has time to soak the part good.After that,use a allen wrench or some other type of bent tool to insert into the iac passage and move the internal valve back & forth to dislodge any carbon buildup between the valve and the housing.Dump the cleaner out,spray fresh cleaner in,dump it again then blow the passages dry with an air compressor and reinstall.Now start the car and see if the rough idle is gone.If it is still present,remove the maf housing from the car,remove the maf sensor from the housing then clean the maf sensor carefully using CRC MAF Cleaner or electronic cleaner.Hold the spray tube away from the sensors heated wires when spraying so you don't put too much pressure on the heated wires.This cleaner usually dries quickly on its own so theres no need to dry it with the air compressor.If you wanna check the tps voltage,make sure voltage increases and decreases smoothly with no spikes or dead spots on the signal wire.