3.2 Carrera- Wiring Harness for a Test Stand

[mikedsilva]

Looking to test run a Carrera 3.2 motor on a test stand. It has the complete original wiring harness. Everthing on the engine side plugs in and has a home.

Does anyone have a high res copy of 3.2 Wiring Diagram they would be willing to email to me? (mikedsilva at optusnet dot com dot au)

The harness from the ecu that would normally lead into the front luggage area has me a little unsure. I've attached photos.
There is a long lead with an eyelet, which I believe is meant to be connected to battery positive all the time.
There is another sheath which has a black and a red wire which look like they would normally have been connected somwhere in the fuse terminal.

Then there is a green/yellow wire wth a spade connector? I 'think' this might have been an aircon input to let the ECU know to compensate with rpm.. correct me if I am wrong.

Then there is a white 4pin connector block which contains:
Yellow
Black.Violet - pretty sure this is tacho
thin black
thick black

Do the 2 black wires need to see 12v in order for the ecu to fire up?
Is the yellow the starter? ie, does that also just need to see 12v?

So for purposes of running this on the test stand, what connections would I need to make? If the yellow and 2 black wires just need to see 12v, could I simply run a switch to each one?

And for later on, when installing into a 1980 SC, where would they need to connect to?
Sorry if this seems like amateur hour, but I kinda am... an amateur.

[ChrisBennet]

If you have a 911SC, why don’t you use that for your engine test stand?