AutoCodes - Generic - P0331

P0331 Code - Knock Sensor 2 Circuit Range/Performance Bank 2

Repair Importance Level: 2/3
Repair Difficulty Level: 2/3
Table of contents

|P0331 code possible causes

  • Faulty Knock Sensor 2 Bank 2
  • Knock Sensor 2 Bank 2 circuit poor electrical connection
  • Knock Sensor 2 Bank 2 harness is open or shorted
  • Faulty Engine Control Module (ECM)

|How do I fix the P0331 code?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

|P0331 code tech notes

The P0331 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.

|Cost of diagnosing the P0331 code

Labor: 1.0

The cost of diagnosing the P0331 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|When is the P0331 code detected?

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

|What are P0331 code possible symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Possible Lack/Loss of Power

|P0331 code description

The knock sensor is attached to the cylinder block. It senses engine knocking using a piezoelectric element. A knocking vibration from the cylinder block is sensed as vibrational pressure. This pressure is converted into a voltage signal and sent to the Engine Control Module (ECM).
OBDII Code P0331 - Knock Sensor 2 Circuit Range/Performance Bank 2 -

|Need more information with the P0331 code?

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|P0331 code information for specific makes

|Need help with a P0331 code?

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|P0331 code comments

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