Electrical, Wiring Harness Assistance Options

[sjhenry1075]

I hate to even post this, but I'm going to ask a bunch of few dumb questions so please bare with me. My car was painted two years ago and in my haste to drop the engine (1.7 with Djet) I did not take a lot of pictures of the wiring harnesses nor did I mark the wires. No, it they not have to be removed, but I did remove them. Yes, Huge mistake. Worst part is, the PO messed with the harness so none of the wire colors are correct.

As you probably guessed, I'm left with kind of a mess. I printed out Bowlsby's diagrams for the harnesses and the 12 point plug (which came apart during the removal process) and tested all the connections for continuity and started to put it back on the car. I few things are stumping me right now and here are my questions:

- My fuel pump no longer comes on. I looked at the wiring schematic and it shows a fuel pump wire going to the 12 pin harness, pin 12 from pin 13 of the 14 pin harness. That wire is supposed to go to the AAR valve correct?

- Is there a wire that goes from the starter to the little box in the engine compartment? It's attached to the side of the trunk and has three posts. On my Mustang it was considered the selonoid, but I'm not sure it's the same on the 914.

Do my questions make sense? I have never been good at electrical stuff. I definitely appreciate any assistance and if you want to call me a dummy that's fine too..

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[Superhawk996]

You are facing a bit of an uphill battle especially if splicing was done and color codes don’t match.

My best advice is learn to use a DMM and to read a wiring diagram if you don’t already know how. Google / YouTube are your friend. Sounds like you’re doing some basic continuity checks so that’s a good sign. (IMG:style_emoticons/default/smilie_pokal.gif)

As answer to your questions

Yes fuel pump and AAR are on a shared circuit coming through the fuel pump relay. The fuel pump relay solenoid is powered 12v + from the power supply relay. The ECU controls (provides a ground) the fuel pump relay solenoid via ECU four pin connector, pin III

Yes the starter solenoid circuit comes from the cabin through the relay board, to the starter. NOTE: the 3 pin connectors are related to the alternator and voltage regulator. Those 3 pin connectors have nothing to do with the starter.

This may help you