I have a GSR and I just put on the Skunk2 intake manifold. The car runs fine. And it idles fine when you first start the car. But if you push the gas, then let it return to idle, the idle bounces from 1500-2500 over and over and over. The engine revs continuously like this until you push the gas or turn off the car. If you turn off the car, turn it back on and allow it to idle its fine, But if you push the gas again, it starts all over. Whats wrong?
IACV (idle control valve) possibly stuck or malfunctionning. Take a look!