if you remove the breather pipe off the rocker cover it idles at about 800 bout because the is a hole after the maf meter it will run lumpy then stall. so i thought it was the breather blocked but it wasnt. the thing that i have found is that someone has drilled a 6mm hole in the throttle butterfly. so you would think there is a problem with the idle circuit. is there any reason why someone whould do this?(modifications or somthing). is there a common fault with the idle system that is a ball ache to fix or expensive? the car did have a xs intercooler on it and hardpiping possably other bits bov ect. Any thoughts or ideas would be much appreciated
cheers
antno