General System Description

DESCRIPTION AND OPERATION
The Electronic Ignition (EI) System fires directly to the Ignition Plugs from Ignition Coils through Spark Plug Wires without using a Distributor.

A pair of Ignition Coils for the Cylinders having different phases by 360° (No.1 and No.4, No.2 and No.5, No.3 and No.6) are fired simultaneously. Since the Cylinder on exhaust stoke requires less energy to fire its Ignition Plug, energy from the Ignition Coils can be utilized to fire the Mating Cylinder on compression stroke. After an additional 36O° rotation, respective Cylinder stokes are reversed. The EI consists of three Ignition Coils, Ignition Control Module, Crank Angle Sensor, Engine Control Module (ECM) and other components.

Module is provided under the Ignition Coil, connected with ECM by means of 6-pin Connector.

The Ignition Control Module turns on/off the primary circuit of Ignition Coils, and also it controls the ignition timing at the Engine speed below 538 rpm. A notch in the Timing Disc on the Crankshaft activates the Crank Angle Sensor which then sends information such as firing order and starting timing of each Ignition Coil to the ECM. Further, the EI employs Ignition Control (IC) to control, similar to a Distributor system.

By receiving signals such as Crank Angle, Engine speed, water temperature and Manifold Absolute Pressure (MAP), the ECM controls the Ignition timing.