1970 914/6 Harness Horror, Main Wiring Harness Connection Options

[Howie149]

I have a 1970 914/6. When I pulled the motor out, the 14 pin Main Harness that sits on the Relay Board in the engine compartment came apart. Thus I have no idea which wire goes where. I have 6 wires. (2 are grey and black and go to the transmission back-up switch/sender. 1 Green and brown and 1 Green and black go to the oil pressure and oil level senders. 1 Black and red goes to the coil and I'm not sure about the black and blue/purple.) I have attached a picture of the harness below.

I would enjoy any guidance on where to plug these wires.

Car won't start and it keeps blowing fuses which I assume is either a problem with these wires or the ignition system/distributor needs an overhaul.

[SixerJ]

Positive you have a six board, two vertical plugs as opposed to one vertical and one horizontal for a 4

Ohming out just means a continuity test pin to pin between the various component on the diagram to identify which wire colour goes from pin x on the exploded plug to say pin y on the distributor, CDI box etc

If you don't have a auto specific multimeter (going to be useful in your Porsche journey) even a bog basic multimeter from you local diy store or Amazon will do

Dial into ohms (upside down U) and start buzzing wires out

I would also try and get the tach adapter apart to replace the frayed yellow wire. I almost lost my 911 to mr smokey because of a frayed wire like that. Lots of frantic pulling wires out from the dash light switch. Very scary and a few very warm fingers

Don't think I have a diagram, will check on Dropbox (edit. Just checked, nope don't have the electrical section of the workshop manual / diagram)

Good luck