I am a newbie to the forums, so please go gentle.
I recently purchased a modified 1.8T Sport off a Forum member. Nice car although it seems to misfire / jolt either when coming off load / changing gear especially between 2500 - 3500 rpm. It also does not seem to be around the 240bhp figure that the last remap took it too.
Having searched the forums i see a misfire / underpower can be due to coil packs / Air leaks. There doesnt seem to be any splits in the rubber or silicone so im ruling out air leaks, is there anything else that can be causing this problem.
I put in new plugs, but this has not made a difference. Ive ordered a VAGCOM but when it arrives i wont really know what i will be looking for to assist my diagnosis. If anyone can suggest or offer help on how to go about fixing this problem i will be most grateful