COPO Chevelle start/run problems

[John Brown]

The little yellow wire that runs from the solenoid powers the ignition when the key and switch are in the start position. When you release the key, you would be running on the normal ignition switch and the resistor wire running through the rest of the harness. If the ignition switch or the resistor wire is at fault, it could start or run in the start position, but not in the run position.

[bwag]

When troubleshooting a no run condition , I always start with a test light at the coil + terminal. With the ignition in RUN position there should be 12 Volts at the + terminal . If no voltage there go to the 12 ga purple wire on the Ign switch and test . If you have power there ,find the open between the two places you just tested . If no power at the switch ,adjust the switch first ,if still no power replace the switch.

[John Brown]

Purple wire just energizes the solenoid. It does have to go through the neutral safety switch first though. It doesn't really have anything to do with the actual ignition circuit.