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P0328 2003 Nissan Altima Sedan Code - Knock Sensor Circuit High Input- Bank 1

Quick Answer

The P0328 diagnostic trouble code (DTC) for a 2003 Nissan Altima Sedan indicates a problem with the Knock Sensor Circuit High Input on Bank 1. Common causes include Faulty knock sensor, Damaged wiring or connectors in the knock sensor circuit, Corrosion or poor connections in the knock sensor circuit. 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 2003 Nissan Altima Sedan indicates Knock Sensor Circuit High Input- Bank 1.
Common causes
Common causes include Faulty knock sensor, Damaged wiring or connectors in the knock sensor circuit, Corrosion or poor connections in the knock sensor circuit.
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 13, 2024
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Code P0328 2003 Nissan Altima Sedan Description

The P0328 diagnostic trouble code (DTC) for a 2003 Nissan Altima Sedan indicates a problem with the Knock Sensor Circuit High Input on Bank 1. The knock sensor is a crucial component of the engine management system, responsible for detecting abnormal combustion in the engine. When the knock sensor detects unusual vibrations or noises that could indicate pre-ignition or detonation, it sends a signal to the engine control module (ECM) to adjust the ignition timing and prevent engine damage.

OBDII Code P0328 2003 Nissan Altima Sedan - Knock Sensor Circuit High Input- Bank 1
P0328 2003 Nissan Altima Sedan Code - Knock Sensor Circuit High Input- Bank 1

Common Causes of P0328 2003 Nissan Altima Sedan

  1. Faulty knock sensor
  2. Damaged wiring or connectors in the knock sensor circuit
  3. Corrosion or poor connections in the knock sensor circuit
  4. ECM software or hardware issues
  5. Engine overheating causing false knock sensor readings

Symptoms of P0328 2003 Nissan Altima Sedan

  1. Engine knocking or pinging noises
  2. Decreased engine performance
  3. Reduced fuel efficiency
  4. Illuminated check engine light
  5. Rough idling or hesitation during acceleration

How to Fix P0328 2003 Nissan Altima Sedan

  1. Diagnose the issue by using a scan tool to read the DTC and inspect the knock sensor and its wiring.
  2. Replace the knock sensor if it is found to be faulty.
  3. Repair or replace damaged wiring or connectors in the knock sensor circuit.
  4. Clear the DTC and reset the ECM to relearn the correct ignition timing.
  5. Test drive the vehicle to ensure the issue has been resolved and the check engine light does not reappear.

Cost to Fix P0328 2003 Nissan Altima Sedan

The typical repair costs for addressing a P0328 code on a 2003 Nissan Altima Sedan can range from $150 to $400, including parts and labor. However, specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's recommended to inquire about local rates for a more accurate estimate. Keep in mind that rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less.

What does this mean?

Tech Notes for P0328 2003 Nissan Altima Sedan

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 2003 Nissan Altima Sedan Code

1. What are the common symptoms of OBDII code P0328 in a 2003 Nissan Altima Sedan?

- The common symptoms include engine knocking or pinging noises, reduced engine performance, and the illumination of the check engine light.

2. What does the OBDII code P0328 on a 2003 Nissan Altima Sedan indicate?

- The code P0328 indicates a high input signal from the knock sensor in Bank 1 of the engine.

3. What are the possible causes of the Knock Sensor Circuit High Input code in a 2003 Nissan Altima Sedan?

- Possible causes include a faulty knock sensor, damaged wiring or connectors in the knock sensor circuit, or a problem with the Engine Control Module (ECM).

4. How can I diagnose the cause of OBDII code P0328 in my 2003 Nissan Altima Sedan?

- To diagnose the issue, you can start by visually inspecting the knock sensor wiring and connectors, testing the knock sensor for proper function, and checking the ECM for any faults.

5. Can I continue driving my 2003 Nissan Altima Sedan with OBDII code P0328?

- It is not recommended to drive the vehicle with a faulty knock sensor, as it can lead to engine damage and reduced performance over time.

6. How can I repair OBDII code P0328 in my 2003 Nissan Altima Sedan?

- The repair may involve replacing the knock sensor, repairing any damaged wiring or connectors, or resetting the ECM after addressing the issue.

7. Is it possible to reset the check engine light after fixing OBDII code P0328 in a 2003 Nissan Altima Sedan?

- Yes, you can reset the check engine light using an OBDII scanner or by disconnecting the car's battery for a few minutes.

8. Will fixing the Knock Sensor Circuit High Input code improve the performance of my 2003 Nissan Altima Sedan?

- Yes, addressing the P0328 code and ensuring the knock sensor is functioning properly can help restore engine performance and fuel efficiency.

9. How much does it cost to repair OBDII code P0328 in a 2003 Nissan Altima Sedan?

- The cost of repair can vary depending on the specific issue, but it may range from $100 to $300 for parts and labor.

10. Can a DIY enthusiast fix OBDII code P0328 in a 2003 Nissan Altima Sedan?

- While some experienced DIY enthusiasts may be able to replace the knock sensor or check wiring connections, it is recommended to consult a professional mechanic for accurate diagnosis and repair.

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