tuner1984

I recently bought a 2008 Porsche Cayman S and had a PPI run on it and everything came back fine. I got it custom dyno tune, and then put on an aftermarket exhaust, an agency power and was going to go get retuned, and got a CEL. Read the codes and it said bad post cat in bank 2. I went ahead and replaced that 02 cleared the codes and the CEL came back on and said primary cat in bank 1 stuck open and running rich. I replaced the primary cat sensor in bank 1, and still have a CEL after clearing the codes, and it's still showing an issue with the Bank 1 02 stuck open and running rich.

Somebody told me that my tune file was corrupted, but I highly doubt that because if it was my car wouldn't be running right now.

If anybody has run into this issue or has experienced something similar any input would be great. Thanks.

Randy V

Better to post technical questions on the appropriate model forum - the Cayman forum in this case.

This forum - Help and Test - is for problems with forum functionality.