relay part numbers, which one is which. +wiring question

[jakeb]

My e34 m50 is missing two of the relays. Two spots look like standard relays and the other has a middle 5th pin. Can I use the relay that matches that connector from my m42 that I am pulling? Does anyone have the relay part numbers.

Can I use two orange ones for the 4 pin sockets. I assume those are fuel pump and O2 sensor and the other is the main relay.

If there is a diagram or a picture somewhere that would help.


Also with the e34 harness do I just run a large power wire from the e30 terminal to the starter?

Also are all the ground wires black and power red? There is just the power wire that goes to the starter and then a small one that goes to the e30 power block. Is that right?

[shopkeep]

Yes the one from the M42 should work.

And yes, run power from the terminal to the starter, I just used a battery cable to do that. The original E30 harness had it built right into it I believe.


I'm not sure about your last question