Okay I picked up an E30 a little while ago and just getting working on it. I changed the transfer pump because the last one was toast. Now when I start it it sounded like it wasn't getting fuel and I couldn't hear the new transfer pump. I jumped the fuel pump relay and the transfer pump worked. I then tried three of my other relays and none of them made the transfer pump work. Any suggestions on what the problem could be?

Edit: May be the main relay. I'm gonna see if I can get my hands on one.

 

Just an update on the thread. It was the Main relay. Putting this here for future internet searchers.

 

find someone who knows bob king..





or dave pallister..



those are my suggestions...either of them or bob brochu..