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Home >> Saab >> 2000 >> 9-3 Base, 2D Convertible, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests - 9-3, 9-5 >> Ignition System >> Timing Control Systems >> Advance Components
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Advance Components

Timing advance is controlled by the ECM. Trionic T-7 Engine Management System uses spark plugs to measure combustion chamber resistance, which is in turn used to control ignition timing, turbo boost and throttle position.