2QM20 Tach wiring
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.
Thanks in advance.
Bashing about on Lake Ontario and Beyond
"Ariel" '79 Endeavour 32