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Need to know what that square gray plastic connetor on the firewall controls 200

posted by  Pottzie on  Wed Sep 8 04:36 CST 2010
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last visit: Sat May 12 14:40 CST 2012
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I'm swapping a motor from one 240 into another. The donor car had bypassed the gray plastic plug with four wires that comes through the firewall. I think it has a red, black, and two yellow/blue wires, and I think that the red is probably the exciter wire for the alternator, as that's one of the wires I'm missing. I've tried to start the car and nothing happens, so I think that the yellow/blue wires are for the safety start circuit. The black remains a mystery, but I don't have anything to connect to the thermostat that's mounted on the block behind the alternator. If anyone could point me to where I can find a wiring diagram for this, I'd sure appreciate it.






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