AutoCodes – Nissan – P0328 2002 Nissan Altima Sedan

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

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 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, Knock sensor circuit poor electrical connection, Knock sensor harness is open or shorted.
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.

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Code Popularity 8,986

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 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 2002 Nissan Altima Sedan 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 2002 Nissan Altima Sedan - Knock Sensor Circuit High Input- Bank 1 - AutoCodes.com — P0328 2002 Nissan Altima Sedan Code - Knock Sensor Circuit High Input- Bank 1

What does this mean?

What are the Possible Causes of the DTC P0328 2002 Nissan Altima Sedan?

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 2002 Nissan Altima Sedan?

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 2002 Nissan Altima Sedan 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 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.