Injection system wiring

[Giro Classico]

Hi guys, I'm assembling my 1975 E9 and I'm having a hard time figuring out what goes into the three wire socket above the brake booster bracket as pictured.
Any help or suggestions are welcome.

Thanks and all best

 

[sfdon]

From memory- early Csi gets key on signal to computer at coil and late Csi gets it from that connector.

 

[Christopher]

White wires from the main D-Jet harness as pictured

 

[Christopher]

In this image (courtesy of Wladek) the wires are shown in the top right corner, labelled with blue tape.

You appear to be missing one of the D-Jet relays (either main injection relay, or cold start relay) as the base is visible in your image

 

[TomHom]

After facelift models use this connector as a terminal base, in the diagram number 37:

The two black cables connector 50 bottom side link to terminal 50 of starter coil and to terminal 60 of the ignition lock. Opposite cable connection cable 18 routes to the ECU terminal 18, telling that ignition process has been activated. Same connection, cable 44 is routed to the terminal 86 of the cold start relais, being activated during starting process.
Center connector leads nowhere (at least on my car). Right lower connector: two green cables, one leads to terminal 24 where the resistance cable to the coil is connected, the other one comes from the ignition terminal 15 and leads further to the fuse of the fuel pump relais. The other side green cable leads to the main relais terminal 86. So all these connections are under power during running condition.

Thomas

 

[TomHom]

....but
...on my '74 CSI the white cores 18, 44 and 41 come out of the injection cable harness and lead to this connector.
Your pic probably shows a harness without these cores.

This is a harness for production year up to '74 with the discrete resistor installed at the ignition coil and as a result a different wiring.
So verify which type of harness is installed in your car, probably this pre facelift one.
If you need scans of the respective wiring diagrams pm me.
Wiring diagrams taken from this book. A must have if you own these cars.

Thomas