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Home >> Subaru >> 1987 >> XT GL, Standard >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Ignition System - HITACHI >> Operation >> Ignition Coil
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Ignition Coil

The ignition coil has a built-in power transistor which amplifies the signal from the control unit. The amplified signal turns the ignition coil primary circuit on and off, inducing the proper high voltage in the secondary circuit.