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DZGunner · Joined: 18 Nov 2014 Posts: 191 Location: Great white north

Does anyone have a fuse/relay chart for an 80 931? I've been looking all over and cant find one, and when i do its usually for an NA car so idk if it'll be the same.

Also because my electrical system was butchered and im pulling out alot of it, i had a quick question about the starter and alternator wires. If im understanding this correctly, a large + wire comes from the battery to the starter, and from that point a new wire leads to the alternator? Or does the alternator have its own wire going to the battery +. I have a massive guage wire thats just cut and sitting in the open, and its part of the original wire harness, so it also has a couple other wires with it.

Long story short, someone jacked up my wires and i'm just going to redo them. I'll try to get some pictures in here tomorrow of my electrical woes.

Thanks guys

DZGunner · Joined: 18 Nov 2014 Posts: 191 Location: Great white north

Someone added this random crap and cut into a lot of the factory wires as you can see.

You guys don't even want to see the interior...

kcoyle · Joined: 15 Jan 2011 Posts: 712 Location: Long Island, NY

PM sent.
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1982 931- Stock with MBC at 8psi

Relax, all right? My old man is a television repairman, he's got this ultimate set of tools. I can fix it.

kcoyle · Joined: 15 Jan 2011 Posts: 712 Location: Long Island, NY

This may help the relay situation.

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1982 931- Stock with MBC at 8psi

Relax, all right? My old man is a television repairman, he's got this ultimate set of tools. I can fix it.

DZGunner · Joined: 18 Nov 2014 Posts: 191 Location: Great white north

Thanks this is actually what i was looking for

leadfoot · Posted: Sun Jan 18, 2015 12:56 pm Post subject:

I would get a haynes manual so you can access all the colour codes and schematics, you will only make things worse as the various years and areas had very different wiring.
If you want to do a serious job, rewire the car completely front to back with a new fuse panel (modern) such as painless or a universal fuse panel and do everything yourself one circuit at a time.
by the time you work out what someone else has done you could have just rewired it to factory specs.

Your other option is to go aftermarket ecu and get the wiring harness for that... this will eliminate some of the old electronic control devices and give you a fresh start.
Stu
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1981 ROW 924 Turbo -
carbon fiber GT mish mash
LS1 conversion in progress...

Rasta Monsta · Joined: 12 Jul 2006 Posts: 11733 Location: PacNW

Pelican has some factory diagrams in color.
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Toofah King Bad

WeiBe (1987 924S 2.5t) - 931 S3