Engine-CodesMitsubishi – P0330 Mitsubishi

P0330 Mitsubishi Code - Knock Sensor 2 Circuit

Quick Answer

The P0330 diagnostic trouble code (DTC) for Mitsubishi vehicles specifically refers to the Knock Sensor 2 Circuit. Common causes include Faulty knock sensor, Damaged wiring or connectors, Corrosion or debris in the sensor connector. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means
P0330 Mitsubishi indicates Knock Sensor 2 Circuit.
Common causes
Common causes include Faulty knock sensor, Damaged wiring or connectors, Corrosion or debris in the sensor connector.
Severity
Moderate - service should be scheduled soon.
Can I drive?
The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P0330 Mitsubishi Description

The P0330 diagnostic trouble code (DTC) for Mitsubishi vehicles specifically refers to the Knock Sensor 2 Circuit. The knock sensor is a critical component of the engine management system, responsible for detecting abnormal combustion in the engine. When the knock sensor detects unusual vibrations or noises that indicate knocking or pinging, it sends a signal to the engine control module (ECM) to adjust the ignition timing accordingly.

OBDII Code P0330 Mitsubishi - Knock Sensor 2 Circuit
P0330 Mitsubishi Code - Knock Sensor 2 Circuit

Common Causes of P0330 Mitsubishi

  1. Faulty knock sensor
  2. Damaged wiring or connectors
  3. Corrosion or debris in the sensor connector
  4. Engine overheating
  5. ECM malfunction

Symptoms of P0330 Mitsubishi

  1. Engine knocking or pinging noises
  2. Decreased engine performance
  3. Reduced fuel economy
  4. Illuminated check engine light
  5. Engine hesitation or stalling

How to Fix P0330 Mitsubishi

  1. Diagnose the issue by using a scan tool to confirm the P0330 code and inspecting the knock sensor and associated wiring.
  2. Replace the faulty knock sensor if it is determined to be the cause of the issue.
  3. Check and repair any damaged wiring or connectors related to the knock sensor circuit.
  4. Clear the code from the ECM memory and test drive the vehicle to ensure the issue has been resolved.
  5. If the problem persists, further diagnostics may be necessary to address any underlying issues with the ECM or engine components.

Cost to Fix P0330 Mitsubishi

The cost of repairing a P0330 code for the knock sensor 2 circuit can vary depending on the specific cause of the issue and the labor rates in your area. Generally, the cost of a new knock sensor can range from $50 to $200, while the labor cost for this repair can typically range from $100 to $300. Overall, the total repair cost for this issue could be around $150 to $500. It's important to remember that prices can vary, so it's advisable to consult with a trusted mechanic or repair shop for a more accurate estimate. Additionally, factors such as the vehicle make and model, as well as the location of the repair shop, can also impact the final cost.

Tech Notes for P0330 Mitsubishi

The P0330 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 or high 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.

Frequently Asked Questions about P0330 Mitsubishi Code

1. What does the OBDII code P0330 mean on a Mitsubishi?

P0330 indicates a problem with the Knock Sensor 2 Circuit, specifically a malfunction or abnormal signal from the sensor in Bank 2.

2. What are the common symptoms of a P0330 code?

Symptoms may include the Check Engine Light turning on, reduced engine performance, poor fuel economy, engine knocking or pinging, and possible hesitation during acceleration.

3. What causes the P0330 code in a Mitsubishi vehicle?

Common causes include a faulty knock sensor, damaged or corroded wiring, poor electrical connections, a failed PCM (Powertrain Control Module), or engine mechanical issues causing excessive vibration.

4. Can I drive my Mitsubishi with a P0330 code?

You can drive with a P0330 code, but prolonged operation may lead to engine damage due to uncontrolled detonation or knocking. It’s best to address the issue promptly.

5. How do I diagnose the P0330 code in my Mitsubishi?

Diagnosis involves checking the knock sensor and its wiring for damage or corrosion, testing the sensor’s resistance, inspecting the PCM, and verifying engine mechanical conditions.

6. How do I fix a P0330 code on a Mitsubishi?

Repairs may include replacing the knock sensor, repairing or replacing damaged wiring, cleaning corroded connections, updating or reprogramming the PCM, or addressing engine issues.

7. Where is the knock sensor located in a Mitsubishi?

The knock sensor is typically located on the engine block, cylinder head, or intake manifold near Bank 2, depending on the model and engine configuration.

8. Can a bad knock sensor cause engine damage?

Yes, if a knock sensor fails and the engine experiences uncontrolled knocking, it can lead to severe damage over time, including piston or cylinder wear.

9. How much does it cost to fix a P0330 code on a Mitsubishi?

The cost can vary depending on parts and labor, but replacing a knock sensor typically ranges from $150 to $400, while wiring repairs or PCM replacement may cost more.

10. Will clearing the code fix the P0330 issue?

Clearing the code will temporarily turn off the Check Engine Light, but if the underlying problem isn’t resolved, the code and symptoms will likely return.

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