my a3,s started misfirin on cylinder 3 ,,, its not the plugs its not the coli packs and the compression is fine ,, i think its the ignition amplifier that sits on top of my filter box ,,, hav u ever encountered it and do u hav any ideas wer i could get 1 as its back order and iv waited 5 weeks for it from gsf ,,,, thanks ,,,, please pm me ur replys if possible ta