Ok at idle mt car raises and lowers about 1300 rpm Like im slowly hiting the gas and slowly letting off ive changed my map sensor and my IAC i cant figure it out plz help it drives me crazy it started just in the morning when it warms up for about 10 min it stops i replaced the IAC 3 times with junkyard parts keep in mind my IAC costs $266.99 and only $6.00 at a junkyard and i dont know what else to look for.