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Home >> Subaru >> 2002 >> Forester Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Ignition Systems >> Ignition Timing Control System >> Ignition Timing Advance Control

Ignition Timing Advance Control

On all models, ignition timing advance is controlled by ECM. Based on sensor input signals, ECM adjusts ignition timing to preprogrammed advance and retard specifications.