Distributor (Optical): Loyale

Optical sensing unit (crank angle sensor) in distributor signals ECU of crankshaft angle and identifies No. 1 cylinder. System consists of distributor (crank angle sensor), ignition coil and power transistor.

Based on input from crank angle sensor, ECU signals base of power transistor. This allows primary current flow to ground. Ignition coil receives primary power supply when ignition coil relay is energized.