Anyone clue me in on what cylinder voltage measures on vag? I'm getting random misfires on cylinders 4 and 6. If I clear the codes, I get them right back on start up. Minimal misfire but I can feel it at idle or holding steady moderate throttle. Started watching cylinder voltage and misfires and that was showing cylinder 5 misfiring and the voltages were a bit lower on cylinders 1 and 6. 06 C6 3.2.