Same code here. I reset it several time and it keeps coming-up. Had it assessed by my local dealer today. He diagnosed the problem as a bad O2 sensor. I advised him that there were reported problems with the early 400 cell cats. He had no knowledge. Sensor has been ordered, and he will verify with Porsche Canada to see if what I stated had value. To be continued.....

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2006 Cayman S
Basalt Black - Launch edition