AutoCodes – Honda – P0326 Honda

P0326 Honda Code - Knock Sensor Malfunction

Quick Answer

A non-resonant type of knock sensor is used, and it is mounted on the cylinder block to detect engine knocking. Common causes include Faulty Knock Sensor, Knock Sensor harness is open or shorted, Knock Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P0326 Honda indicates Knock Sensor Malfunction.
Common causes: Common causes include Faulty Knock Sensor, Knock Sensor harness is open or shorted, Knock Sensor circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 763

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 07, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0326 Honda Description

A non-resonant type of knock sensor is used, and it is mounted on the cylinder block to detect engine knocking. Vibration from engine combustion causes the torus-shaped weight to compress the ceramic element in the non-resonant knock sensor, and converts it into electrical signals. The Powertrain Control Module (PCM) controls the ignition timing according to the electrical signal level. If the signal level from the knock sensor drops for a set time because of a poor connection at the knock sensor, or a bad sensor, the PCM detects a malfunction and stores a Diagnostic Trouble Code (DTC).

OBDII Code P0326 Honda - Knock Sensor Malfunction - AutoCodes.com — P0326 Honda Code - Knock Sensor Malfunction

What does this mean?

What are the Possible Causes of the DTC P0326 Honda?

Faulty Knock Sensor
Knock Sensor harness is open or shorted
Knock Sensor circuit poor electrical connection

How to Fix the DTC P0326 Honda?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0326 Honda 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 P0326 Honda code?

Need more information on how to fix the P0326 Honda code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0326 Honda code diagnosed by a professional: Find a repair shop in your area

Information for Specific Honda Models

P0326 2016 Honda CR-V — Knock Sensor Malfunction
P0326 2017 Honda CR-V — Knock Sensor Malfunction
P0326 2018 Honda CR-V — Knock Sensor Malfunction
P0326 2019 Honda CR-V — Knock Sensor Malfunction
P0326 2020 Honda CR-V — Knock Sensor Malfunction
P0326 2021 Honda CR-V — Knock Sensor Malfunction

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 P0326 Honda Code

1. What does the OBDII code P0326 mean on a Honda?

P0326 indicates a Knock Sensor Circuit Range/Performance issue where the sensor detects abnormal engine vibrations outside the expected range.

2. What are the common symptoms of a P0326 code in a Honda?

Symptoms may include a check engine light, reduced engine performance, poor fuel economy, or knocking/pinging sounds from the engine.

3. What causes the P0326 code to appear in a Honda?

Common causes include a faulty knock sensor, damaged wiring or connectors, engine mechanical issues, or incorrect fuel octane.

4. Can I drive my Honda with a P0326 code?

Driving with a P0326 code is not recommended, as it may lead to engine damage due to unmonitored knocking or detonation.

5. How do I fix the P0326 code in my Honda?

Repairs typically involve replacing the knock sensor, repairing damaged wiring, ensuring the proper fuel octane, or addressing any related engine mechanical issues.

6. How much does it cost to fix a P0326 code on a Honda?

The cost varies but typically ranges from $150 to $500, depending on whether the knock sensor or wiring needs replacement.

7. Can a bad knock sensor cause engine damage?

Yes, a faulty knock sensor may fail to detect engine knocking, which can lead to serious internal engine damage over time.

8. How do I diagnose a P0326 code in a Honda?

Diagnosis involves scanning for the code, inspecting the knock sensor and wiring, checking for engine mechanical issues, and testing sensor output with a multimeter.

9. Can using the wrong fuel cause a P0326 code in a Honda?

Yes, using fuel with a lower octane rating than recommended can cause engine knocking, potentially triggering a P0326 code.

10. Will clearing the P0326 code fix the problem permanently?

Clearing the code will turn off the check engine light temporarily but wonâ€™t resolve the underlying issue causing the code. Proper diagnosis and repair are necessary.