Update: I fixed the code issue, it was indeed the IAC valve, thanks for the suggestion. It wasn`t really dirty, but I think it was stuck. I disassembled and cleaned it out and now idling is stable and the code s gone.
I made a video of the intakes expanding, uploaded it here:
https://www.youtube.com/watch?v=8C2ZBcO4WZY&feature=youtu.be
Perhaps the new rings need to wear in and not seating perfectly yet..
Boxster
Threaded Mode
