Computers and Control Systems: Description and Operation

DME System Diagram:

The Digital Motronic Engine control system (DME) provides precise control of the fuel injection and ignition systems to ensure optimum performance and strict emissions compliance. Various engine sensors and other systems (i.e., air conditioning, auto transmission etc.) supply the DME control unit with operating information. The DME control unit processes the input information and sends output signals to adjust injector pulse width and ignition timing. Refer to COMPONENT OPERATION for detailed operation of the DME control unit.