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NGK/NTK Ign Knock Sensor ID0137 Features
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Determines if engine knock (caused by detonation) is present
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Internally sealed to prevent moisture intrusion
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Advanced piezo ceramic technology for increased durability
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Shielded harness prevents electrical interference
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Harness length and wire gauge matches Original Equipment
About NGK/NTK Ign Knock Sensor ID0137
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.
