AIR COMPRESSOR GP 1609845 - Caterpillar

electronic control system includes the following major components:
Temperature sensors
Pressure sensors
Electronic control module (ECM)
Wiring harness
Engine speed/timing sensor
Flash file (software)The electronic control system is integrally designed into the engine fuel system in order to electronically control the fuel delivery and the injection timing. The ECM provides increased control of timing in comparison to the conventional mechanical engine. Injection timing is achieved by precise control of the injector firing time. The engine speed is controlled by adjusting the firing duration. The ECM energizes the fuel injector solenoids in order to start injection of fuel. Refer to System Operations, "Fuel System Operation" for a complete explanation of the fuel injection process.