Thanks for the advice but checked haynes manual and according to that 16v models don't have idle speed control? is this right? i take it my car has something similar but all i can see is throttle position sensor also can anyone tell me what a tmap sensor does haynes manual tell you how to remove and replace but doesnt tell you what they do so i am at a bit of a loss ? taking it to dealer on tues but if it doesnt throw up any fault codes what then?