Spark Control

Spark control allows the electronic control unit (ECU) to determine the exact instant that ignition is required, based upon information received from data sensors.

At the optimum time, the ECU breaks the primary circuit of the ignition coil, producing a high voltage at coil center tower. This voltage surge fires the spark plug at the proper time for most efficient combustion, eliminating the need for vacuum and/or centrifugal advance.

The DME system consists of 4 sub-systems.