hey guys really need help getting stump with idle problem. the problem is when i first start the car the would warm up normal around 1500 rpm, after about 10 minutes the idle would go higher, to 1800 and stay, so i adjusted the tps and the idle would drop to 1100 rpm, when i rev it up the idle would drop to 900 rpm and go back up to 1100. the weird thing is that when i drive i would be driving and shift to nuetral the idle would drop to 900 and then bounce back up to 1300, when i stop completely then it would drop to 1000 to 900 rpm. i don't get really need help begging, i replaced the tps, tested and cleaned iacv, don't know what the problem is.

 

did you check your cable adjustment, this happened to me and i found the throtle cable was sticking. when i idles funny pull back on the throtle and make sure its all the way closed.

 

Well, what have you done to the car that might affect your idle? Change vacuum hoses, or coolant... could be a couple different things.