Let's see the high idle solenoid has one wire that goes to the ballast resistor on the firewall and the solenoid is grounded by the solenoid case/bracket attached to the intake manifold. The ignition key is turned on and 12 volts positive is fed to the solenoid wire at the ballast resistor and because of the bracket ground the solenoid is activated. Any keyed 12v + power source would accomplish the same results of activating the solenoid and de-activating it when shut off. The solenoid plunger should stay out the entire time the engine is running or connected to a 12 v power source. Is this correct?

MikeR