NISSAN 22060-2Y000 Knock Sensor

This genuine OEM NISSAN (SKU: 22060-2Y000) knock sensor (SENSOR ASSY) is a premium-quality, precision electronic component essential for the safe and efficient operation of the engine.

Operating Principle and Function

The knock sensor is a piezoelectric sensor bolted directly to the engine cylinder block. Its function is to continuously monitor the mechanical vibrations generated by the combustion processes in the engine cylinders. If uncontrolled auto-ignition (knocking / detonation) occurs due to an incorrect air-fuel mixture, improper fuel octane rating, or other factors, the sensor converts the resulting specific-frequency vibrations into an electrical voltage signal. It transmits this signal to the engine control unit (ECU), which immediately retards the ignition timing, thereby preventing severe mechanical damage to the pistons, rings, and cylinder head.

Technical Specifications and Features

• Sensor Type: Piezoelectric vibration sensor (Knock Sensor)
• Manufacturer: NISSAN (Genuine OEM part)
• Material: High heat- and vibration-resistant metal housing with premium plastic connector sleeve
• Installation Location: Engine block (under the cylinder head, in an optimal position between the cylinders)
• Connection: Factory-specification electrical connector for stable and corrosion-free signal transmission

Typical Symptoms of Failure

In the event of knock sensor aging, internal open circuits, or external damage, the following symptoms may be observed:

• Check Engine Light: Warning message illuminated on the dashboard, often accompanied by diagnostic trouble code P0325 or related codes.
• Power Loss: In the event of a faulty sensor signal, the ECU may enter limp-home mode and continuously retard the ignition timing, resulting in a noticeable drop in power.
• Increased Fuel Consumption: Suboptimal ignition timing reduces combustion efficiency.
• Rough Idle or Engine Pinging: Under load, the engine may become more prone to knocking if the sensor fails to detect and report the condition.

Using a genuine Nissan part guarantees accurate calibration, adherence to factory tolerances, and long service life, avoiding the false diagnostic fault codes frequently experienced with aftermarket sensors.