Computers and Control Systems: Description and Operation

DME System Diagram:

The Digital Motronic engine control system (DME) precisely controls fuel injection and ignition under variable operating conditions. Various engine sensors and other systems (ie. 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.