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Home >> Mazda >> 2000 >> MPV LX >> Repair and Diagnosis >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Ignition Systems >> Ignition Timing Control Systems >> Detonation (Knock) Retard Operation

Detonation (Knock) Retard Operation

Millenia, MPV and 626 2.5L use an ignition retard system consisting of knock sensor(s) and PCM. The knock sensor detects engine detonation (knocking) in the engine and sends a signal to PCM.