Another Oil Air Seperator
Had a freind bring by his boxster that had started smoking on him excessively out the tailpipe. Worse on startup, but would happen when driving as well. This is pretty typical of a bad oil air seperator. When the car got here, it was idling extremely roughly and had a CEL. This was odd, and you start to think the worst. Read down the CEL and came up with the following laundry list!
P1128: O2 sensing adaption (bank 1)
P1130: O2 sensing adaptation (bank 2)
P0300: Misfiring damaging to the cat
P0304: Misfire cylinder 4 damaging to the cat
P0305: Misfire cylinder 5 damaging to the cat
P0306: Misfire cylinder 6 damaging to the cat
P0507: Idle control system exceeds limit value.
Obviously we still want to start cheap and pray for an easy fix. We decided swapping out the OAS was a good idea, so a couple hours later we had it done. Idle cleared up and all the CEL codes did not come back. Wheeewwwwww
The offending culprit.