A.This is called engine run-on and is caused by an output from the exciter circuit to the ignition system. A diode is an electrical valve only allowing current to flow in one direction.

A California start-up has produced a vehicle ignition system it says reduces harmful emissions and raises fuel economy, while tossing aside century-old science still being used today, as the world ...

We're also installing a coil over ignition system from Jacobs Electronics ,called the Jacob's Ultra Team Mileage Master Energy Pack, on our 1997 Dodge Truck. The ignition system features a CMD ...