my car drives fine at high speed but once i get to around 15-20 mph the rpm's stay at about 2000 even with my foot all the way off the gas. when i come to a complete stop, my car's idle will jump from 1500 to 2000 over and over again. what the hell do i need to do? what's the problem?

 

Sounds like your Idle Air Control Valve you might want to take it off and clean it with carb cleaner and compressed air.

 

I had the same problem on my 89 crx si. Have you done anything to the motor?


Modified by zerobytegeek at 3:28 PM 11/13/2008

 

yeah i have the same exact car. 89 crx si. i tried cleaning out the idle air control valve, however, when i losened the two 10mm bolts to take it off....i realized that i needed to unscrew two philips head screws. when i tried doing that i almost stripped them because they are in so tight. i tried spraying carb cleaner inside of it and through the hoses but no luck. and yes the car is lightly modified. it has a different cam gear and an intake. that's about it. what the hell should i do? pictures would be greatly appreciated....