LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Alfa Romeo >> 1987 >> Spider Graduate >> Repair and Diagnosis >> Engine Performance >> System >> Spark Control System >> Description
April 5, 2026: LEMON Manuals is launched! Read the announcement.

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.