I bought a wreck 1994 530i as a project car to fix. Then bought another one as donor that didn't run, but got it running. Took it to have the exhaust fixed, and I think the shop fried something because it hasn't run since returning home, but a few days later. I want to revive it again, but really don't know where to begin. It cranks but won't start and run. Initially it was a relay that was wrong. White ECU relay had another one in that plug. Going to test them all. Oh, it has sat for about a year, and now I want it to run. Any suggestions on an approach? Again, I'm probably just a gluten for punishment.
The wrecked one is still in my garage under repair. Longer story though.