I doubt very much if a dodgy
would cause a miss on one cylinder only.
Are you certain the duff cylinder is getting a good spark. If so it could be a duff fuel injector or compression problem. It would be prudent to get a compression test done on all four cylinders for a comparison
mmm thats what I was thinking but the AA hooked it up to their diagnostics and thats what they told me.
The spark on the duff cylinder is very week and yellow.
I first thought ht lead an
pack but neither have solved the problem.
could dodgy wiring be at fault? Can't think what else it could be.