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P0333 Nissan Code - Knock Sensor 2 Circuit High Input Bank 2

Quick Answer

The P0333 Nissan code refers to a high input signal from Knock Sensor 2, which is located in Bank 2 of the engine. Common causes include Faulty knock sensor, Wiring issues or corrosion in the sensor circuit, Engine overheating. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means
P0333 Nissan indicates Knock Sensor 2 Circuit High Input Bank 2.
Common causes
Common causes include Faulty knock sensor, Wiring issues or corrosion in the sensor circuit, Engine overheating.
Severity
Low - monitor the vehicle and repair when practical.
Can I drive?
The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
What is this?
Table of contents Created and updated by William Orellana on Sep 06, 2024
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Code P0333 Nissan Description

The P0333 Nissan code refers to a high input signal from Knock Sensor 2, which is located in Bank 2 of the engine. The knock sensor detects abnormal combustion in the engine, which can lead to knocking or pinging. When the sensor detects a high input signal, it means that the engine is experiencing excessive knocking, which can potentially cause damage if not addressed. This code can lead to poor engine performance, decreased fuel efficiency, and potential engine damage if left unresolved.

OBDII Code P0333 Nissan - Knock Sensor 2 Circuit High Input Bank 2
P0333 Nissan Code - Knock Sensor 2 Circuit High Input Bank 2

Common Causes of P0333 Nissan

  1. Faulty knock sensor
  2. Wiring issues or corrosion in the sensor circuit
  3. Engine overheating
  4. Engine timing issues
  5. Engine mechanical problems, such as carbon buildup or worn components

Symptoms of P0333 Nissan

  1. Engine knocking or pinging noises
  2. Reduced engine power
  3. Decreased fuel efficiency
  4. Check Engine Light illuminated
  5. Engine misfires

How to Fix P0333 Nissan

  1. Begin by diagnosing the knock sensor and sensor circuit to determine the exact cause of the high input signal.
  2. Replace the faulty knock sensor if it is determined to be the issue.
  3. Inspect and repair any damaged wiring or connections in the sensor circuit.
  4. Address any underlying engine issues that may be contributing to the high input signal, such as engine timing or mechanical problems.
  5. Clear the diagnostic trouble codes and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0333 Nissan

The typical repair costs for addressing a P0333 Nissan code can vary depending on the specific cause of the issue. In general, the cost of replacing a knock sensor can range from $150 to $250, including parts and labor. However, additional costs may be incurred if wiring repairs or other engine repairs are necessary. It's important to consult with a qualified mechanic to get an accurate estimate based on your vehicle's make and model, as well as any additional issues that may need to be addressed.

What does this mean?

Tech Notes for P0333 Nissan

The P0333 code means that the Knock Sensor is not working properly. Problems with the knock sensor will not cause an engine performance problems. Replacing the knock sensor usually takes care of the problem.

When is the Code Detected?

An excessively high voltage from the sensor is sent to Engine Control Module (ECM)

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Information for Specific Nissan Models

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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