P0332 Knock Sensor 2 Circuit Range/Performance (Bank 2)

Understanding and Troubleshooting P0332 Knock Sensor 2 Circuit Range/Performance (Bank 2)

Have you ever come across the P0332 error code while driving your car? It can be frustrating and alarming to see the check engine light come on and not know what to do.

Well, fear not, as we’re here to help you understand and troubleshoot the P0332 Knock Sensor 2 Circuit Range/Performance (Bank 2) error code.

What is the P0332 error code?

The P0332 code indicates that the Knock Sensor 2 Circuit on Bank 2 is experiencing a range or performance issue. The knock sensor is responsible for detecting vibrations or “knocks” in the engine and sending this information to the engine control module (ECM). The ECM uses this information to adjust the timing of the engine and prevent damage from detonation.

What are the symptoms of the P0332 error code?

The symptoms of the P0332 code may vary depending on the severity of the issue. Some common symptoms include:

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  • Check engine light illumination
  • Reduced engine power or acceleration
  • Engine hesitation or stalling
  • Poor fuel economy
  • Engine knocking or pinging noise
  • Rough idling or vibrations

What causes the P0332 error code?

There are several possible causes of the P0332 code, including:

  • Faulty knock sensor
  • Damaged or corroded wiring or connectors in the knock sensor circuit
  • Failed ECM or powertrain control module (PCM)
  • Engine mechanical issues, such as worn bearings or damaged pistons
  • Low engine oil or coolant levels

How do you troubleshoot the P0332 error code?

Before attempting to troubleshoot the P0332 code, it’s important to ensure that your car’s engine is in good condition and that all other maintenance requirements have been met.

Here are the steps you can take to troubleshoot the P0332 code:

Step 1: Check for other error codes

Check if there are any other error codes present in your car’s onboard diagnostic system. Often, multiple error codes can be related to the same issue.

Step 2: Inspect the Knock Sensor 2 Circuit

Inspect the wiring and connectors in the Knock Sensor 2 Circuit on Bank 2. Look for any signs of damage, such as corrosion, frayed wires, or loose connections. If any issues are found, repair or replace the affected parts.

Step 3: Test the Knock Sensor 2

Test the Knock Sensor 2 using a multimeter. Follow the manufacturer’s instructions for testing and compare the readings to the specifications provided in your car’s service manual. If the readings are outside the specified range, replace the knock sensor.

Step 4: Check the Engine Control Module (ECM)

Check the ECM or PCM for any signs of damage or malfunction. If necessary, replace the ECM or PCM.

Step 5: Check for engine mechanical issues

If all other steps fail, inspect the engine for any mechanical issues. Have a qualified mechanic perform a compression test to check for worn bearings or damaged pistons. Additionally, check the engine oil and coolant levels to ensure they are not low.

In conclusion, the P0332 Knock Sensor 2 Circuit Range/Performance (Bank 2) error code can be frustrating and alarming. However, with a little troubleshooting, you can quickly resolve the issue and get back on the road. Remember to always follow proper safety procedures and consult with a qualified mechanic if you’re unsure about any steps.


  1. Can I still drive my car with the P0332 error code?

It’s not recommended to drive your car with the P0332 code as it can cause engine damage if left unresolved.

  1. How much does it cost to replace a knock sensor?

The cost of replacing a knock sensor can vary depending on the make and model of your car, but it typically ranges from $150 to $400.

  1. Can a bad knock sensor cause a misfire?

Yes, a bad knock sensor can cause misfires as it can cause the engine to run lean or rich, leading to misfires.

  1. How do I reset the check engine light after fixing the P0332 error code?

You can reset the check engine light by using an OBD-II scanner to clear the error codes.

  1. Can a P0332 error code be caused by a bad catalytic converter?

No, a P0332 error code is not related to the catalytic converter. It’s specifically related to the Knock Sensor 2 Circuit on Bank 2.