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P0332 Infiniti Code - Knock Sensor 2 Circuit Low Input Bank 2

Quick Answer

The P0332 code for Infiniti vehicles indicates that there is a low input signal from Knock Sensor 2 in Bank 2 of the engine. Common causes include Faulty knock sensor, Wiring harness issues or loose connections, Engine mechanical problems causing knocking. 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
P0332 Infiniti indicates Knock Sensor 2 Circuit Low Input Bank 2.
Common causes
Common causes include Faulty knock sensor, Wiring harness issues or loose connections, Engine mechanical problems causing knocking.
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 Aug 30, 2024
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Code P0332 Infiniti Description

The P0332 code for Infiniti vehicles indicates that there is a low input signal from Knock Sensor 2 in Bank 2 of the engine. The knock sensor is responsible for detecting engine knocking or pinging, which can result from improper combustion timing. The Engine Control Module (ECM) uses this information to adjust the ignition timing for optimal performance and fuel efficiency. When the knock sensor detects a low input signal, it can lead to poor engine performance, reduced fuel economy, and potential engine damage if left unresolved.

OBDII Code P0332 Infiniti - Knock Sensor 2 Circuit Low Input Bank 2
P0332 Infiniti Code - Knock Sensor 2 Circuit Low Input Bank 2

Common Causes of P0332 Infiniti

  1. Faulty knock sensor.
  2. Wiring harness issues or loose connections.
  3. Engine mechanical problems causing knocking.
  4. ECM or engine control module issues.
  5. Faulty ignition system components.

Symptoms of P0332 Infiniti

  1. Engine knocking or pinging noises.
  2. Decreased engine performance or power.
  3. Poor fuel efficiency.
  4. Illuminated Check Engine Light.
  5. Engine misfires or rough idling.

How to Fix P0332 Infiniti

  1. Diagnose the specific cause of the low input signal from Knock Sensor 2 in Bank 2.
  2. Inspect the wiring harness and connectors for any damage or loose connections.
  3. Test the knock sensor for proper functionality and replace if necessary.
  4. Address any underlying engine mechanical issues causing knocking.
  5. Clear the diagnostic trouble codes and test drive the vehicle to ensure the issue is resolved.

Cost to Fix P0332 Infiniti

The cost of repairing a P0332 code for an Infiniti vehicle can vary depending on the specific cause of the issue. Replacing a knock sensor typically ranges from $150 to $250, while addressing wiring harness or ECM issues may involve additional costs. Labor rates at auto repair shops can range from $80 to $150 per hour, so the total repair cost could be anywhere from $200 to $500 or more. It's recommended to consult with a qualified mechanic or dealership for a more accurate estimate based on your vehicle's make and model.

What does this mean?

Tech Notes for P0332 Infiniti

The P0332 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 low voltage from the sensor is sent to Engine Control Module (ECM)

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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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