AutoCodes – Mitsubishi – P0325 Mitsubishi

P0325 Mitsubishi Code - Knock Sensor Circuit Malfunction

Quick Answer

The Knock Sensor (KS) senses engine knocking (also known as detonation or pinging) using a piezoelectric element. Common causes include Faulty Knock Sensor, Knock Sensor circuit poor electrical connection, Knock Sensor harness is open or shorted. 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: P0325 Mitsubishi indicates Knock Sensor Circuit Malfunction.
Common causes: Common causes include Faulty Knock Sensor, Knock Sensor circuit poor electrical connection, Knock Sensor harness is open or shorted.
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.

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Code Popularity 19,034

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 16, 2019

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0325 Mitsubishi Description

The Knock Sensor (KS) senses engine knocking (also known as detonation or pinging) using a piezoelectric element. The sensor is attached to the cylinder block, cylinder head or intake manifold. 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). The ECM uses this signal to retard the ignition timing and protect the engine from this damaging pre-ignition.

OBDII Code P0325 Mitsubishi - Knock Sensor Circuit Malfunction - AutoCodes.com — P0325 Mitsubishi Code - Knock Sensor Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC P0325 Mitsubishi?

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

How to Fix the DTC P0325 Mitsubishi?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

The P0325 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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0325 Mitsubishi code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0325 Mitsubishi code?

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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 P0325 Mitsubishi Code

1. What are the common symptoms of OBDII code P0325 (Knock Sensor Circuit Malfunction) in a Mitsubishi?

- Common symptoms include engine knocking or pinging noises, loss of engine power, poor fuel economy, and illuminated check engine light.

2. What are the possible causes of a P0325 trouble code in a Mitsubishi?

- The code P0325 in a Mitsubishi is often caused by a faulty knock sensor, wiring issues in the knock sensor circuit, or a malfunctioning Engine Control Module (ECM).

3. How does a knock sensor work in a Mitsubishi vehicle?

- A knock sensor in a Mitsubishi detects abnormal combustion noises (knocking or pinging) in the engine. It sends signals to the ECM to adjust ignition timing and prevent engine damage.

4. Can a P0325 code be triggered by a loose or disconnected knock sensor connector?

- Yes, a loose or disconnected knock sensor connector can trigger a P0325 code in a Mitsubishi, as it disrupts the communication between the sensor and the ECM.

5. How can I diagnose a P0325 code in my Mitsubishi?

- Diagnosing a P0325 code involves checking the knock sensor and its wiring for any damage, testing the sensor's resistance, and inspecting the ECM for any faults.

6. What are the repair options for a P0325 code in a Mitsubishi?

- Repair options for a P0325 code include replacing the knock sensor, repairing or replacing damaged wiring, and reprogramming or replacing the ECM if necessary.

7. Is it safe to continue driving with a P0325 code in a Mitsubishi?

- It is not recommended to continue driving with a P0325 code, as it can lead to engine damage and reduced performance. It is best to address the issue promptly.

8. Can a P0325 code in a Mitsubishi be triggered by using low-quality fuel?

- Using low-quality fuel can potentially lead to engine knocking, which may trigger a P0325 code in a Mitsubishi by causing the knock sensor to detect abnormal combustion.

9. How much does it typically cost to repair a P0325 code in a Mitsubishi?

- The cost to repair a P0325 code in a Mitsubishi can vary depending on the exact cause of the issue. It may range from $150 to $500 for parts and labor.

10. Can a P0325 code be intermittent in a Mitsubishi?

- Yes, a P0325 code can be intermittent in a Mitsubishi, meaning it may come and go. It is essential to address the underlying issue to prevent potential engine damage.