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P0328 2004 Infiniti G35 Code - Knock Sensor Circuit High Input- Bank 1

Quick Answer

The P0328 diagnostic trouble code (DTC) for a 2004 Infiniti G35 indicates a Knock Sensor Circuit High Input in Bank 1. Common causes include Faulty knock sensor, Damaged or corroded wiring harness, Engine mechanical issues causing false knock sensor readings. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means
P0328 2004 Infiniti G35 indicates Knock Sensor Circuit High Input- Bank 1.
Common causes
Common causes include Faulty knock sensor, Damaged or corroded wiring harness, Engine mechanical issues causing false knock sensor readings.
Severity
Low - monitor the vehicle and repair when practical.
Can I drive?
The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
What is this?
Table of contents Created and updated by William Orellana on Sep 15, 2024
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Code P0328 2004 Infiniti G35 Description

The P0328 diagnostic trouble code (DTC) for a 2004 Infiniti G35 indicates a Knock Sensor Circuit High Input in Bank 1. The knock sensor is a crucial component in the engine management system that detects abnormal combustion, often referred to as engine knocking or pinging. When the knock sensor detects these abnormal vibrations, it sends a signal to the engine control module (ECM) to adjust the ignition timing to prevent engine damage.

OBDII Code P0328 2004 Infiniti G35 - Knock Sensor Circuit High Input- Bank 1
P0328 2004 Infiniti G35 Code - Knock Sensor Circuit High Input- Bank 1

Common Causes of P0328 2004 Infiniti G35

  1. Faulty knock sensor
  2. Damaged or corroded wiring harness
  3. Engine mechanical issues causing false knock sensor readings
  4. ECM malfunction or software glitch
  5. Poor quality fuel causing pre-ignition

Symptoms of P0328 2004 Infiniti G35

  1. Engine knocking or pinging noises
  2. Decreased engine performance and acceleration
  3. Reduced fuel efficiency
  4. Illuminated check engine light
  5. Engine misfires or rough idling

How to Fix P0328 2004 Infiniti G35

  1. Begin by diagnosing the knock sensor circuit using a scan tool to confirm the P0328 code and pinpoint the issue.
  2. Inspect the wiring harness for any damage, corrosion, or loose connections. Repair or replace any faulty wiring.
  3. Test the knock sensor using a multimeter to ensure it is functioning correctly. Replace the knock sensor if necessary.
  4. Clear the DTC and reset the ECM to relearn the correct ignition timing.
  5. Test drive the vehicle to verify that the issue has been resolved and the check engine light remains off.

Cost to Fix P0328 2004 Infiniti G35

The typical repair costs for addressing a P0328 code in a 2004 Infiniti G35 can range from $200 to $500, including parts and labor. However, it is essential to note that specific diagnosis time and labor rates at auto repair shops can vary significantly based on factors such as location, vehicle make and model, and engine type. Most auto repair shops charge between $80 and $150 per hour for labor, but rates may be higher in metropolitan areas or at dealerships, while independent shops may offer lower rates. It is advisable to obtain local estimates for a more accurate cost assessment.

What does this mean?

Tech Notes for P0328 2004 Infiniti G35

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.

When is the Code Detected?

An excessively high voltage from the sensor is sent to Electronic 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 P0328 2004 Infiniti G35 Code

1. What are the common symptoms of OBDII code P0328 on a 2004 Infiniti G35?

- Common symptoms include poor engine performance, engine knocking or pinging noises, reduced fuel efficiency, and the illumination of the Check Engine Light.

2. What does the OBDII code P0328 - Knock Sensor Circuit High Input - Bank 1 indicate on a 2004 Infiniti G35?

- This code indicates that the knock sensor in Bank 1 of the engine is detecting a high input signal, which can lead to engine performance issues.

3. What are the possible causes of OBDII code P0328 on a 2004 Infiniti G35?

- The code P0328 can be triggered by a faulty knock sensor, wiring issues in the knock sensor circuit, a damaged knock sensor connector, or engine mechanical problems causing false knock sensor readings.

4. How can I diagnose the cause of OBDII code P0328 on my 2004 Infiniti G35?

- Diagnosing the issue involves checking the knock sensor and its wiring for damage, testing the sensor's resistance, inspecting the connector for corrosion, and verifying proper sensor operation.

5. Can I continue driving my 2004 Infiniti G35 with OBDII code P0328 present?

- It is not recommended to ignore the code and continue driving, as it can lead to potential engine damage or decreased performance. It's best to address the issue promptly.

6. Is it possible to reset the OBDII code P0328 on a 2004 Infiniti G35 without fixing the underlying problem?

- Resetting the code without fixing the underlying issue will only temporarily turn off the Check Engine Light. The root cause should be identified and addressed to prevent further problems.

7. How can I repair OBDII code P0328 on my 2004 Infiniti G35?

- Repairing the code typically involves replacing the faulty knock sensor, repairing any damaged wiring or connectors, and clearing the code with a diagnostic tool.

8. Are there any tips to prevent OBDII code P0328 from recurring on a 2004 Infiniti G35?

- To prevent the code from recurring, it's essential to use high-quality fuel, maintain regular engine tune-ups, and address any engine performance issues promptly.

9. Can a DIY enthusiast fix OBDII code P0328 on a 2004 Infiniti G35?

- While some may attempt to fix the issue themselves, it's recommended to have a professional diagnose and repair the problem to ensure it is properly resolved.

10. How much does it cost to repair OBDII code P0328 on a 2004 Infiniti G35 at a mechanic or dealership?

- The cost of repairing the code can vary depending on the root cause, but it may range from $200 to $500 for parts and labor at a mechanic or dealership.

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