NTK ID0075 Ignition Knock (Detonation) Sensor

Key features

• Determines if engine knock (caused by detonation) is present
• Internally sealed to prevent moisture intrusion
• Advanced piezo ceramic technology for increased durability
• Shielded harness prevents electrical interference
• Harness length and wire gauge matches Original Equipment

The ignition knock sensor determines if engine knock is present (caused by detonation). A piezoelectric crystal, which generates a varying voltage based upon engine vibration intensity, sends a signal to the ECM. The signal is used to retard ignition timing which prevents engine damage caused by pre-ignition. Located on the engine block, common causes for replacement include check engine lamp illumination, engine hesitation, poor fuel economy and failed emissions tests.

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