The electronic engine control unit (ECU) is the central controller and heart of the engine management system. It controls the fuel supply, air management, fuel injection and ignition. Due to the scalability of its performance, the control unit is also able to control the exhaust system as well as to integrate transmission and vehicle functions. The ECU manages all types of powertrain and topologies such as Gasoline, Diesel, CNG, Ethanol and also Hybrid and Fuel Cell system