idle probs man i hate them
ok well i had the problem too but mine was a leak where the egr and iac and coolant runs by throttle body. i determined this with carb cleaner, i started the car and sprayed the carbcleaner around the egr and throttle body where coolant runs through. and my idle increased then back down. indcates i had a vaccum leak. i bought all new gaskets and resealed up the whole area from egr to iac to those two gaskets that are between the throttle body. you could have a leak somewhere else this might not even help but it worked for me and be carefull of the spray you could start a fire!!