OEM Knock Sensor for 1996-2002 Nissan Pathfinder models equipped with the VG33E powertrain.

The Knock Sensor is a vital component of the engine management system that detects engine knock or detonation. It monitors the vibrations caused by combustion and sends signals to the engine control unit (ECU) to adjust the ignition timing. Over time, the knock sensor can become damaged or fail, which can impact the engine's performance and efficiency.

Here are some signs that the knock sensor may need to be replaced:

• Engine knocking: If the knock sensor becomes faulty or fails, it may not accurately detect engine knock. This can lead to persistent engine knocking noises, especially during acceleration or under load.
• Check Engine Light: A malfunctioning knock sensor can trigger the check engine light on the dashboard. The ECU detects a problem with the knock sensor and stores a corresponding trouble code.
• Poor engine performance: When the knock sensor is not functioning properly, the ECU may retard the ignition timing excessively to prevent potential engine damage. This can result in reduced power, decreased fuel efficiency, and sluggish acceleration.
• Decreased fuel economy: A faulty knock sensor can cause the engine to run inefficiently, resulting in decreased fuel economy. The ECU may adjust the fuel mixture to compensate for the lack of accurate knock sensor data, leading to excessive fuel consumption.
• Unresponsive acceleration: A malfunctioning knock sensor can cause delayed or unresponsive acceleration, as the engine control unit may be unable to optimize the ignition timing properly.

Replace your insufficient Knock Sensor with this genuine Nissan replacement part.

Please select the appropriate year range from the options drop-down. 

Fits:

• 1996-2002 Nissan Pathfinder
  • VG33E equipped