Engine Wiring Harness

[clevelandcoupe]

Guys,

As I am in the process of installing a Petronix ignition module in a friends 72 Mach and I have a question. The instructions read to connect red wire to a 12V power source without a ballast or resistor wire. I know from previous experience that our cars have a resistor wire in the harness feeding the positive side of the coil. Is the actual resistor wire in the short engine harness that plugs in near the brake booster or some where before that.

Thanks, Jay

 

[midlife]

It's in the underdash harness.

 

[clevelandcoupe]

Thanks Midlife for the immediate response, its greatly appreciated !!!

 

[73pony]

There is a pertronix relay you can get that allows install without cutting into the harness under the dash.