got a misfire,,,,looking at the engine from left to right the 4th cilyinder is not working properly. have changed the spark plugs and the leads also the crank poistion sensor and the cam sensor, have also tried another coil pack no joy.. . . . i had bought this engine about 4wks ago and it drove perfect, then it started to judder after 2wks so i changed the plugs, and it was i fine. then a wk later the judder was back, and has got worse ever since. sometimes when i dip me foot on the clutch when driving the revs drop rapidly and the car somtimes cuts out.. . . im out of ideas and money . . . can you help?

Edited by Avant on 25/09/2010 at 12:04