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Reply to "Voltmeter with one-wire alternator?"

Can you draw a sketch of how you wired the voltmeter up? The alternator would have no bearing on the voltmeter. A voltmeter is simply measuring voltage to ground. The pink wire you connected to for +12 volts should have power when the ignition switch is in the run position. Have you verified that?

The meter has a ground connection in addition to the case being grounded for the light. One post to +12v and the other post to ground.

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