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Engine-Codes – Nissan – P0328 2002 Nissan Altima Sedan

P0328 2002 Nissan Altima Sedan Code - Knock Sensor Circuit High Input- Bank 1

Quick Answer

The P0328 diagnostic trouble code (DTC) for a 2002 Nissan Altima Sedan indicates a Knock Sensor Circuit High Input on Bank 1. Common causes include Faulty knock sensor on Bank 1, Damaged or corroded wiring/connectors leading to the knock sensor, Issues with the ECM receiving incorrect signals from the knock sensor. 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 2002 Nissan Altima Sedan indicates Knock Sensor Circuit High Input- Bank 1.
Common causes
Common causes include Faulty knock sensor on Bank 1, Damaged or corroded wiring/connectors leading to the knock sensor, Issues with the ECM receiving incorrect signals from the knock sensor.
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 16, 2024
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Code P0328 2002 Nissan Altima Sedan Description

The P0328 diagnostic trouble code (DTC) for a 2002 Nissan Altima Sedan indicates a Knock Sensor Circuit High Input on Bank 1. The knock sensor is a crucial component in the engine management system that detects abnormal combustion, often referred to as engine knock or detonation. 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 2002 Nissan Altima Sedan - Knock Sensor Circuit High Input- Bank 1
P0328 2002 Nissan Altima Sedan Code - Knock Sensor Circuit High Input- Bank 1

Common Causes of P0328 2002 Nissan Altima Sedan

  1. Faulty knock sensor on Bank 1.
  2. Damaged or corroded wiring/connectors leading to the knock sensor.
  3. Issues with the ECM receiving incorrect signals from the knock sensor.
  4. Engine overheating causing false signals to the knock sensor.
  5. Poor quality fuel or incorrect fuel octane levels causing engine knock.

Symptoms of P0328 2002 Nissan Altima Sedan

  1. Engine knocking or pinging noises during acceleration.
  2. Decreased engine performance and acceleration.
  3. Poor fuel efficiency and increased fuel consumption.
  4. Illumination of the Check Engine Light on the dashboard.
  5. Engine misfires or rough idling.

How to Fix P0328 2002 Nissan Altima Sedan

  1. Begin by diagnosing the knock sensor on Bank 1 to determine if it is faulty or if there are wiring issues.
  2. Inspect the wiring harness and connectors for any damage, corrosion, or loose connections. Repair or replace as necessary.
  3. Test the knock sensor using a multimeter to ensure it is functioning within the specified voltage range.
  4. If the knock sensor is faulty, replace it with a new OEM or high-quality aftermarket sensor.
  5. Clear the DTC from the ECM memory and perform a test drive to ensure the issue has been resolved.

Cost to Fix P0328 2002 Nissan Altima Sedan

The typical repair costs for addressing a P0328 code on a 2002 Nissan Altima Sedan can vary depending on the specific cause of the issue. On average, the cost of replacing a knock sensor and addressing any wiring issues can range from $200 to $500, including parts and labor. However, it's important to note that labor rates at auto repair shops can vary, with hourly rates typically ranging between $80 and $150. Additionally, the cost of the knock sensor itself can vary based on the brand and quality, so it's advisable to consult with a trusted mechanic for a more accurate estimate based on your specific vehicle and location.

What does this mean?

Tech Notes for P0328 2002 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 2002 Nissan Altima Sedan Code

1. What does the OBDII code P0328 mean for a 2002 Nissan Altima Sedan?

The P0328 code indicates that the Knock Sensor Circuit on Bank 1 is detecting a high input, which may suggest a malfunction in the knock sensor or its wiring.

2. What are the common symptoms of code P0328 in a 2002 Nissan Altima?

Symptoms may include reduced engine performance, poor fuel economy, engine knocking or pinging noises, and in some cases, the Check Engine Light illuminating.

3. What causes the P0328 code to appear in a Nissan Altima?

Common causes include a faulty knock sensor, damaged wiring or connectors, excessive engine vibration, or an ECU issue.

4. Can I drive my 2002 Nissan Altima with the P0328 code?

While the car may still run, driving with this code can lead to poor performance and potential engine damage if knocking occurs and is not properly detected.

5. How does the knock sensor work in the 2002 Nissan Altima?

The knock sensor detects vibrations caused by engine knock and sends signals to the ECU to adjust timing and prevent damage.

6. How do I diagnose the P0328 code in a Nissan Altima?

Start by checking the knock sensor and its wiring for damage or disconnections. Use a multimeter to test the sensor's resistance and scan for additional related codes.

7. What repairs are needed to fix the P0328 code?

Repairs may include replacing the knock sensor, repairing or replacing damaged wiring, or reprogramming the ECU if necessary.

8. Where is the knock sensor located on a 2002 Nissan Altima?

The knock sensor is typically located on the engine block, cylinder head, or intake manifold, near the combustion chambers.

9. How much does it cost to fix the P0328 code on a 2002 Nissan Altima?

Repair costs can range from $150 to $500, depending on parts and labor, with the knock sensor replacement itself typically costing around $100-$200 for parts.

10. Will replacing the knock sensor always fix the P0328 code?

Not necessarily; you should also inspect and repair any damaged wiring or connectors and ensure the ECU is functioning correctly.

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