Turbo 616 powered Astro Van build
Turbo 616 powered Astro Van build
With that setup, Hook the pump shutoff to the vac outlet, and the vacuum from the pump to the atmosphere connection.
With that setup the pump will draw air from the shutoff actuator in rest position (no current) shutting the car off. When applying 12v (switch ignition on) the "vac inlet" (now atmosphere) is opened to the atmosphere and releasing the vacuum allowing the engine to start, and keep the original atmosphere connection closed, so no vac leaking.
Easy cheap and simple. The one from a ranger as you describe is te same als almost every 3 connection electronic solenoid.