The wiring diagrams show the red wire with light green coming from the tach. It also shows it as the positive feed to the coil? what gives? Tachs are tripped by the negative side. I'm rewiring the engine bay so any help would be aprreciated. What are the wires that go on the coil with the factory tach.
73 Mach 1 Coil Wiring
- Thread starter Silent Thunder
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I don't think they meant that wire was coming from the tach. I believe what it was meant to point out is there was a tach option on some cars and that power feed to the coil is either pink (no tach option) or red w/green stripe (has tach). It should be your power feed and should go back to your start relay. Generally a tach wire is solid green.
Verify that red/green wire by flipping your ignition on and putting a volt meter on it and you should get 12v or a little less if resisted.
There are others on here that know the 73 better than me though and im sure will chime in on this for you.
Verify that red/green wire by flipping your ignition on and putting a volt meter on it and you should get 12v or a little less if resisted.
There are others on here that know the 73 better than me though and im sure will chime in on this for you.
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