Hi my wife was driving and the car started to judder badly revs would not go over 3000 and was really struggling to pick up any speed. She made it home. I have vcds lite scanned and gave me codes 16686 and 16684 which was cylinder 2 misfire. I changed the plugs and ignition coils as thought that may be the issue the 2nd plug was very black and smells of fuel. I cleared the codes they have not returned but i have not driven the car only started it on the drive but its still shaking badly and misfires when i rev the engine. You can smell fuel coming from the exhaust. I have read a forums relating to cheap ignition coils causing issues, I did buy the budget ones because I thought they would at least tell me if this was the problem. After clearing the codes it did seem slightly better but still not really driveable. Does anyone have any ideas? Is it worth me buy a set of OE ignitions coils?