woody1969

hi there, i have put new plugs in found that one coil pack was cracked and replaced that and the others are ok. normally runs on v power but the mechanic who took the car to the mot station put unleaded in it so i have put in a high octane boost and topped the car up with v power and still the same problem. I will be trying my friends air flow meter to see if its that next but if it isn't i don't know what to do. i hear it could be over boosting but the car hasn't been messed around with and it doesn't sharp judder like i have read on some of the forums posted. I am running the car without the cat, don't know if that could be a reason but it was fine before. The car will drive normal but only when you put your foot down and the turbo kicks in and around 5000 revs to 6000 is when i get the juddering/ spluttering etc. Help please!

steviecrump

Make sure your plugs are gapped correctly.

woody1969

ok will do but they should be alright