hi there ive got an a3 on v plate (2000) and it started to misfire so i changed the ht leads and spark plugs but this made no difference. i then thought i may of blown my head gasket so had my head skimmed and put a new head gasket on which hasnt made a difference either. After doing a compression test i found that no 2 clyinder only had a measly 20psi compression with the others at 180psi. im not entirely sure but if a valve was sticking could that be the issue. ANY HELP WOULD BE HUGELY APPRECIATED, thanks, jon.