I received the following fault codes from running the Durametric Software on car and would greatly appreciate suggestions on how to address them. P1602 Porsche fault code 108 Supply voltage open circuit. P1319 Porsche fault code 62 Misfire emissions-relevant P1313 Porsche fault code 50 Cylinder 1 misfire P0300 Porsche fault code 75 misfire damaging to catalytic converter P0301 Porsche fault code 63 cylinder 1 misfire damaging to catalytic converter My car started idling rough and I discovered a bolt missing from the right header. Do I need to replace the catalytic converters? If so would replacing the cats with bypass pipes cause emissions problems down the road.