2002 Boxster S No electrical Power at all

[EdPrem]

Originally Posted by gtsracer

Hello everyone, new member here. After trying to figure out my no power issue on 2002 Boxster S race car I gave up and don't really know what else to do. Before hauling the car to a Porsche mechanic, wanted to see if someone here had similar issue and may be able to help.
My Boxster suddenly lost all electrical power to it. I tried new battery, checked the kill switch, replaced the ignition switch, checked fuses, including distributor box 80 amp fuse, checked immobilizer fuse, opened the box (immobilizer) and looked for any corrosion-all good.
It is no longer under the seat but somewhere between door bar and door, so no getting really soaked issue here.
Any suggestions?

I had the same problem. It was the alternator. I replaced it and everything worked fine. It helps if you have the Bentley Service manual to do the replacement.