i have changed the coil about two weeks ago,the car done before i changed the coil aswel but never done it as much as it does now.it maybe used to do it once in a while but now it seems to be when its warmed up especially after iv give it a little boot.Also when it does fire back which takes a few turns,there is quite a bit of smoke(blue/black).i have just changed the turbo for anew one,i have also topped the water up cos it was on the min,as it has always been since owning the car.any help aprecciated thanx p.s where do i find that sensor at mate,how much?