Just bought an 87 325is. Turns over but no start

[quikveedb2]

if you replaced the main relay with one that does not have all 5 pins like you said in your first post make sure you have the correct relay it has 2 87 pins for the main relay
and it must not have an 87a otherwise the relay is incorrect and car will not run.

i made that mistake awhile ago wasted money on the incorrect relay.

+1. This was my first thought reading the original post, you've got the wrong main relay. Also, +1 on doing some tests before just throwing new parts at the problem, gl.

Edit; I'd be pretty leery of firing up an m20 with a timing belt that hasn't moved in 3 years, seems like asking for trouble to me...

[mr.vang]

Sound like what I had when I bought a dead 87 325is. End being the external fuel pump. I replaced it and it fire right up.