c101 wiring

[321gazza]

Been looking on tech help, would like wiring diagram (both sides) for the c101 ,e30, and what they do from the fuse box tothe c101 in engine bay please.

[Grrrmachine]

Have you tried typing "C101" into the Wiki?

[321gazza]

No just been looking page by page, the hard way lol.

[Grrrmachine]

Yeah, the Wiki search is rubbish

Anyway, the pinouts on the Wiki page should show that very little goes to the fuse box - the C101 is mostly to make the instruments work, while the rest of the engine loom goes straight to the ECU or the battery. It's only the lambda heater and the fuel pump relay trigger wire that go to the fuse box.

[321gazza]

Just wondering were to get starter feed from as i have fitted a vauxhall turbo engine, would like to use the key to start as if it was the original engine ect and a constant live for the ecu, should the starter go through a relay to be safe.

[Grrrmachine]

Depends on the wiring you have on your starter. The BMW starter has the relay built in - it gets its start signal from the black/yellow wire on C101, pin 18.

This explains the starter wiring on an E30:

http://www.e30zone.net/e30zonewiki/inde ... ter#Wiring

[321gazza]

Thanks grrrmachine, vauxhall have the same set up so no problem their.