You guys waaay overthink stuff. It's a simple DC motor, the windings are open. Using what I know to be true on the E46 and E36, I took the back seat out and the pump was right where I thought it would be. I hesitate to make a spark because I filled the tank less than 30 miles ago. They had a pump in stock at AutoZone for $150, no waiting. The maker is Delphi, they have been building stuff for longer than I've been alive

All is well. Started on the first try.

And, yes I checked for codes first.