i having problems with my idle..when i start the car it idle at 1500-2000...even when i switch gears it be around 1500...one guy on this forum told me to unplug the iacv ..it idle perfect on start up...when rev up it goes back to 1000..thats what i need my idle to get back to...is that the problem?..i dont want to go buy a new iacv if i didnt need it..thanks