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1982 Subaru EA Ignition Control System Schematic Diagram
The 1982 Subaru EA Ignition Control System is composed of battery, an ignition coil, a distributor, spark plugs, a control unit and wires. The crank angle sensor built-in distributor detects the reference crank angle and and the positioned crank angle. Electronic signal of both angles is transmitted to control unit which is used in common by fuel injection system. The control unit calculates the spark advance angle and determines the spark timing. Below picture shows 1982 Subaru EA Ignition Control System Schematic Diagram (SPFI).
The electronic signal of spark timing determined by control unit is transmitted to the power transistor where it makes the primary circuit to ignition coil, whereby high voltage current is generated in the secondary circuit. The high voltage of secondary circuit is distributed to the spark plug of each cylinder and discharged there. The spark advance angle is calculated from the following three factor: Engine speed compensation, Advance when starting the engine, and Advance in all driving conditions except starting the engine, after engine speed exceeds the present value.
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