Originally Posted by theholycow
I understand how it makes the decision to trigger the starter, but how does it stop operating the starter?
The light from the alternator goes off, that powers the relay that starts the car is powered by that light so when it goes off the relay is no longer active; the starter stops working. When the light is off the relay is off so the starter goes off.
What car do you drive? Is it a standard?, when you start you car does your alternator light just goes off or does it blink?, is there another light that clearly indicates your engine is not running but is off when it is? are you interested in trying this system?