my my98 uk turbo has just developed a bad misfire under med to heavy acceleration. It is smooth on idle and under steady to med boot its ok. anyone had this problem.
i have just been using it for heavy traffic use for last 2 weeks so i thought, plugs could be fouling.
had a blast to Blackpool and back and it hasnt cleared it, so maybe not! anyone had same problem.

 

have you tried plug leads or coils? Could be a bit of tracking going on and loosing the spark.

 

checked connected ok, but seemed fine how do u check coil pack.
ps. top user name!

 

How old are the plugs / & are you running higher than standard boost ?? If the plugs are worn or gapped incorrectly the spark can be weak & almost blow out under boost giving the misfire

Dean

 

Check your plug gaps mate, i had nitemare with mine, missfiring underload ...........turns out plug gap set wrong ..

should be 0.7mm