Computerized Engine Controls: Notes

The Motronic engine management system, which operates in conjunction with other computer-controlled systems, precisely controls fuel injection and ignition under variable operating conditions. These other computer-controlled systems, listed as follows, can influence engine management system operation depending on requirements.

Electronic Transmission Control (EGS), Automatic A/C System (IHKA), Anti-Theft System (DWA), Anti-Lock Brake System (ABS), Instrument Cluster and On-Board Computer.

The Motronic engine management system controls air/fuel mixture and exhaust emissions by adjusting fuel injection and ignition timing. The Motronic control unit receives and processes sensor input, and sends output signals to adjust injector pulse widths and ignition timing.