AutoCodes – Audi – P0328 Audi

P0328 Audi Code - Knock Sensor 1 Circuit High

Quick Answer

The knock sensor is attached to the cylinder block. 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: P0328 Audi indicates Knock Sensor 1 Circuit High.
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 18,981

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 Jun 14, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0328 Audi 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 P0328 Audi - Knock Sensor 1 Circuit High - AutoCodes.com — P0328 Audi Code - Knock Sensor 1 Circuit High

What does this mean?

What are the Possible Causes of the DTC P0328 Audi?

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 P0328 Audi?

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 P0328 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 P0328 Audi 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.

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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 P0328 Audi Code

1. What are common symptoms of OBDII code P0328 in an Audi related to Knock Sensor 1 Circuit High?

- Common symptoms include engine pinging or knocking noises, decrease in fuel efficiency, and potential engine performance issues.

2. What are possible causes of the P0328 code in an Audi?

- The P0328 code in an Audi is commonly caused by a faulty knock sensor, damaged wiring or connectors related to the knock sensor, or a problem with the engine control module (ECM).

3. How serious is the P0328 code in an Audi?

- While the P0328 code may not cause immediate damage to the engine, it can lead to reduced engine performance and fuel efficiency. It is important to address the issue promptly to avoid potential long-term problems.

4. How can I diagnose the cause of the P0328 code in my Audi?

- Diagnosing the P0328 code typically involves using a diagnostic scanner to read the code, checking the knock sensor and related wiring for damage, and testing the sensor's resistance. It is recommended to consult a professional mechanic for accurate diagnosis.

5. Can I continue driving my Audi with the P0328 code present?

- It is not recommended to continue driving your Audi with the P0328 code present, as it can lead to engine performance issues and potentially worsen the problem over time. It is best to address the issue as soon as possible.

6. How can I repair the P0328 code in my Audi?

- Repairing the P0328 code in an Audi typically involves replacing the faulty knock sensor, repairing any damaged wiring or connectors, and clearing the code from the ECM using a diagnostic scanner.

7. Are there any DIY tips for fixing the P0328 code in my Audi?

- While some DIY enthusiasts may attempt to replace the knock sensor themselves, it is recommended to have the repair done by a qualified mechanic to ensure proper installation and accurate diagnosis of the issue.

8. Will resetting the ECM clear the P0328 code in my Audi?

- Resetting the ECM may temporarily clear the P0328 code, but if the underlying issue causing the code is not addressed, it is likely to reappear. It is best to diagnose and repair the root cause of the problem.

9. How much does it cost to repair the P0328 code in an Audi?

- The cost of repairing the P0328 code in an Audi can vary depending on the cause of the issue, the cost of parts, and labor charges. It is advisable to obtain quotes from different mechanics or repair shops for an accurate estimate.

10. Can the P0328 code in an Audi affect vehicle emissions?

- Yes, the P0328 code in an Audi can impact vehicle emissions by causing improper fuel combustion and potentially increasing harmful emissions. It is important to address the issue to maintain proper emission levels.