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Old 06-20-2020, 06:21 PM
Anthony Anthony is offline
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Join Date: Apr 1999
Location: cleveland, OH
Cobra Make, Engine: CSX4000, 427
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Been through this recently.

How many wires coming off the alternator ?
If 1, then you need to get the above linked module.

If you have 3 wires, then the wire going to the 2 wire plug, labeled as #1, needs to wired from the ignition switch, then to the alt light bulb, then to the alternator spade labeled #1. This is the "field" wire, that needs to be energized to create a magnetic field, so the spinning alternator will create a charging voltage / current. The spade wire labeled #2, is the voltage sensing wire for the internal regulator, and is usually best connected to the fuse block hot, although many people jump it over to the Bat wire.
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