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Re: COP with 3 wires..what is the 3rd wire doing and why?
Posted to Technical Theory Forum on 3/8/2002

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hallow

black one (4 of them) is the ground at the right rear engine. black/yellow (4 of them) is the power from the fuse #4 25amp. white/blue-green-black-white (4 different colors) to ecm for pulse.... Login to read more.