[Jamesp]

Thank you very much JFP, I was hoping you would weigh in. Thanks for taking the time to provide the details behind the codes. I was looking to purchase documentation containing detailed references to the codes with fault trees, but I don't know which documentation to purchase. Can you provide a reference?

As for chasing a short, I have the older shop manuals with wiring diagrams, but not a 2003. Is there reference material you would recommend?

I just got through running the car to make Durametric screen shots and Porshe code 80 also popped up - secondary air system bank one. That secondary air system is a pain in the rear, or perhaps better stated the middle.

Thanks again,

Jim