Slow idle upon cold start

[Smallblock454]

Hello,

sounds like it is running too lean.

I suspect a dying MAF.

If it would be a vacuum leak, it would be a permanent problem.

It's a 2002. So the thottle is electronically controlled by the the ECU. Can't imagine there is something wrong with that this way.

Low fuel pressure could cause the problem. But that would also be a more permanent problem.

Regards, Markus

[Porsche9]

Markus,

MAF is definitely another possibility. I need to either get myself a Durametric to read any error codes or simple bring it to my local Porsche shop.

Thanks!