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Home >> Alfa Romeo >> 1987 >> Spider Graduate >> Repair and Diagnosis >> Engine Performance >> System >> Spark Control System >> Description
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Spark Control System: Description

The VSZ digital electronic ignition system is used. Flywheel transmitters, intake manifold vacuum sensor and ignition coolant temperature sensor supply input to ignition Electronic Control Unit (ECU). The ECU adjusts timing, dwell and spark intensity due to engine load. Ignition timing is not adjustable.