Guessing plugs on loom

Converting To Delco ECU From Carby Or Other Injection Systems
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Re: Guessing plugs on loom

Post by vs ss »

1st pic looks like the ecu coolant temp plug
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Re: Guessing plugs on loom

Post by GH1176 »

[quote="vs ss"]1st pic looks like the ecu coolant temp plug[/quote]

Coolant temp would be the blue one wouldn’t it?
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Re: Guessing plugs on loom

Post by vs ss »

Oh yeah, sorry. It’s been along time since I played with these and had a brain moment.
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Re: Guessing plugs on loom

Post by antus »

Try leaving it not connected and see how you go. It sounds like the green one probably is AC as there is no AC on the diagrams you post. The white one is also likely not critical and if you key on and it doesnt work whats not working might give you a clue. The diagrams seem to cover bare minimum wiring, you probably need factory wiring diagrams to see the ancillary connections.
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Re: Guessing plugs on loom

Post by antus »

According to this, assuming '12' is the 6 pin connector, I can count for the other 5 pins from what you've posted, and the remaining one is S R (grey/violet) and goes to the TCC. Those colours a bit faded might be what you're looking at.
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Re: Guessing plugs on loom

Post by GH1176 »

I was using this one to find out the wire colours.
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Re: Guessing plugs on loom

Post by pman92 »

I'm not sure what the injector type plug is but would love to know if you ever work it out.
It wasn't in any of the looms I've done or I would of added it to the diagram.
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Re: Guessing plugs on loom

Post by Charlescrown »

Maybe put a multimeter on it and find out what ECU terminals it connets to.
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Re: Guessing plugs on loom

Post by GH1176 »

So the extra plug ended up being the alternator plug, not listed in the schematic but the person who removed the loom said it was plugged into the alternator and it is the right plug for it.
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Re: Guessing plugs on loom

Post by GH1176 »

Charlescrown wrote:Maybe put a multimeter on it and find out what ECU terminals it connets to.
Doesn’t go to the ecu, just to body control plug.
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