The knock sensor on your Toyota VVTi engine is basically a microphone that senses if detonation occurs in one of the cylinders. The detonation happens when the fuel-air mixture ignites before it ...

Since adoption of a knock control system (KCS) on Toyota Crown (2.0ℓ OHC with Turbo–charger) in autumn 1980, Toyota has continued development and application of various resonance–type and ...