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Old 05-13-2012
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2QM20 Tach wiring

Hi all,

I recently popped a new Faria tachometer into my boat, where previously someone had put a blanking plate.

Can someone help me sort out the wiring leads in my control panel? This is for an alternator signal tach.

The wires are:

I, G, W, and "+"

They should equate, I think, to ignition pos, alt signal, ground, and lamp pos, but my testing today stumped me.

Little help?

Thanks in advance.

R
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