A digital speed governor, also known as an electronic speed governor, works by using sensors and a digital control system to monitor and regulate the speed of a mechanical system, such as an engine or motor. Once the speed rate reaches the preset limit, the engine quickly restricts the free flow of air, fuel and even the combustion system so that the vehicle cannot spark and proceed. By communicating the speed rate to the engine’s computer system, the engine is able to help control the speed rate of the car. The vehicle can move as fast as it can, but it would generally be unable to overstep its speed limit. In this way, the speed governor works with the car’s engine to control overspending. The vehicle’s speed limit can be preset at the time of installation to help control the speed rate of the vehicle.