HELP HELP HELP!!!!! After a change of timing belt with my LUPO GTI this is now not working properly. lt. workshop should have no compression on the 3rd and 4th cylinder. Now we have broken down the head and removed all valves. Are all in order! The head has not. Also block is fine. He ran before the change of timing belt also great! What’s there? A speci meant that the steering belt of the camshafts was probably twisted by a tooth. Thus the valves were open stan the two cylinders (3.4.) and he has shot into it. Just at the stand was quite bad and had misfires. (Reinschiessen in den Luftfilter) Does someone know any other things that could be it? Ask for most urgent answers!!! Thank you!