AutoCodes – Infiniti – P0327 Infiniti

P0327 Infiniti Code - Knock Sensor Circuit Low 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: P0327 Infiniti indicates Knock Sensor Circuit Low 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 25,802

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 P0327 Infiniti 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 P0327 Infiniti - Knock Sensor Circuit Low Input Bank 1 - AutoCodes.com — P0327 Infiniti Code - Knock Sensor Circuit Low Input Bank 1

What does this mean?

What are the Possible Causes of the DTC P0327 Infiniti?

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 P0327 Infiniti?

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 P0327 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 P0327 Infiniti 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.

Need more information about the P0327 Infiniti code?

Need more information on how to fix the P0327 Infiniti code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0327 Infiniti code diagnosed by a professional: Find a repair shop in your area

Information for Specific Infiniti Models

P0327 2003 Infiniti G35 — Knock Sensor Circuit Low Input Bank 1
P0327 2004 Infiniti G35 — Knock Sensor Circuit Low Input Bank 1
P0327 2005 Infiniti G35 — Knock Sensor Circuit Low Input Bank 1
P0327 2006 Infiniti G35 — Knock Sensor Circuit Low Input Bank 1

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 P0327 Infiniti Code

1. What are the common symptoms of OBDII code P0327 Infiniti (Knock Sensor Circuit Low Input Bank 1)?

- Common symptoms include engine misfires, reduced engine performance, and potential increase in fuel consumption.

2. What are the possible causes of OBDII code P0327 in an Infiniti vehicle?

- The code P0327 in an Infiniti is often triggered by a faulty knock sensor, wiring issues, or a problem with the sensor circuit.

3. How can I diagnose the cause of OBDII code P0327 in my Infiniti?

- To diagnose the issue, you can perform a visual inspection of the knock sensor and its wiring, use a multimeter to test the sensor's resistance, and check for any loose connections.

4. Can I still drive my Infiniti with OBDII code P0327 present?

- It is not recommended to drive your vehicle with code P0327 as it can lead to further engine damage if left unresolved.

5. How can I repair OBDII code P0327 in my Infiniti?

- Repairing code P0327 typically involves replacing the faulty knock sensor, repairing any damaged wiring, and clearing the code with an OBDII scanner.

6. Will resetting the OBDII code P0327 in my Infiniti make it go away permanently?

- Resetting the code may temporarily turn off the check engine light, but if the underlying issue is not fixed, the code is likely to reappear.

7. Are there any DIY tips for fixing OBDII code P0327 in an Infiniti?

- While some may attempt to replace the knock sensor themselves, it is recommended to consult a professional mechanic for accurate diagnosis and repair.

8. What is the function of the knock sensor in an Infiniti vehicle?

- The knock sensor in an Infiniti detects abnormal engine noises, or "knocks," and signals the engine control unit to adjust ignition timing to prevent engine damage.

9. Can a faulty knock sensor affect the overall performance of my Infiniti vehicle?

- Yes, a faulty knock sensor can lead to reduced engine performance, increased fuel consumption, and potential engine misfires.

10. How long does it typically take to repair OBDII code P0327 in an Infiniti?

- The repair time for code P0327 can vary depending on the extent of the issue, but it usually takes a few hours to diagnose and replace the knock sensor.