Ignition Control to Distributor

First Car 75 Duster said

Fantastic. Now I just need to know what wire is the one that sends the signal

Click to expand...

Both. The reluctor wheel induces a current into the pickup coil. The two wires come from the pickup. There isn't a dedicated role for each wire, neither is a positive or ground, both wires are needed in order to "read" the signal.