AutoCodes – Generic – P1327

P1327 Code - Knock Sensor 2 Low Input

Quick Answer

The Engine Control Module (ECM) monitors the Knock Sensor. Common causes include Faulty Knock Sensor, Knock Sensor harness is open or shorted, Knock Sensor circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means: P1327 indicates Knock Sensor 2 Low Input.
Common causes: Common causes include Faulty Knock Sensor, Knock Sensor harness is open or shorted, Knock Sensor circuit poor electrical connection.
Severity: Moderate - service should be scheduled soon.
Can I drive?: The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

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Code Popularity 20,223

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 19, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1327 Description

The Engine Control Module (ECM) monitors the Knock Sensor. The Diagnostic Trouble Code (DTC) will be set when the ECM detects the Knock Sensor is not to factory specifications.

OBDII Code P1327 - Knock Sensor 2 Low Input - AutoCodes.com — P1327 Code - Knock Sensor 2 Low Input

What does this mean?

What are the Possible Causes of the DTC P1327?

Faulty Knock Sensor
Knock Sensor harness is open or shorted
Knock Sensor circuit poor electrical connection

How to Fix the DTC P1327?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1327 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 P1327 code?

Need more information on how to fix the P1327 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1327 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1327 Audi — Cylinder 3 Knock Control Limit Attained
P1327 BMW — Knock Sensor 2 Low Input
P1327 Chrysler — Cylinder 4 Oil Supply Solenoid Valve Switch ON Time Immeasurable
P1327 Dodge — Cylinder 4 Oil Supply Solenoid Valve Switch ON Time Immeasurable
P1327 Fiat — Cylinder 4 Oil Supply Solenoid Valve Switch ON Time Immeasurable
P1327 Hyundai — Glow Relay Electrical
P1327 Jeep — Cylinder 4 Oil Supply Solenoid Valve Switch ON Time Immeasurable
P1327 MINI — Knock Sensor 2 Low Input
P1327 Volkswagen — Cylinder 3 Knock Control Limit Attained

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 P1327 Code

1. What are the common symptoms of OBDII code P1327 (Knock Sensor 2 Low Input)?

The common symptoms of P1327 include reduced engine performance, engine knocking or pinging noises, and in some cases, the illumination of the check engine light.

2. What are the possible causes of OBDII code P1327 (Knock Sensor 2 Low Input)?

Possible causes of P1327 include a faulty knock sensor, wiring issues in the knock sensor circuit, poor electrical connections, or engine mechanical problems causing knock sensor readings to be out of range.

3. How can I diagnose OBDII code P1327 (Knock Sensor 2 Low Input)?

Diagnosing P1327 involves inspecting the knock sensor and its wiring for damage, testing the sensor's resistance, checking for loose or corroded electrical connections, and scanning the vehicle's computer for related fault codes.

4. Can a faulty knock sensor cause OBDII code P1327 (Knock Sensor 2 Low Input)?

Yes, a faulty knock sensor can trigger code P1327 as it may not be sending the correct signals to the engine control module, leading to low input readings and potential engine performance issues.

5. How serious is OBDII code P1327 (Knock Sensor 2 Low Input)?

While P1327 may not cause immediate harm to the engine, it can impact engine performance and fuel efficiency. Ignoring the issue may lead to further damage if the underlying cause is not addressed promptly.

6. What are some repair tips for addressing OBDII code P1327 (Knock Sensor 2 Low Input)?

Repair tips for P1327 include inspecting and replacing the knock sensor if necessary, repairing or replacing damaged wiring, ensuring proper electrical connections, and clearing the fault code to see if it reoccurs.

7. Can I drive my vehicle with OBDII code P1327 (Knock Sensor 2 Low Input) present?

It is generally not recommended to drive with P1327 present, as it can lead to decreased engine performance and potential long-term issues. It is advisable to address the underlying problem as soon as possible.

8. How much does it typically cost to repair OBDII code P1327 (Knock Sensor 2 Low Input)?

The cost of repairing P1327 can vary depending on the cause of the issue, labor rates, and the price of parts. On average, the repair cost can range from $150 to $400, including parts and labor.

9. Can a DIY enthusiast fix OBDII code P1327 (Knock Sensor 2 Low Input)?

While diagnosing and repairing P1327 may require some technical knowledge and tools, a knowledgeable DIY enthusiast with the right resources can potentially address the issue themselves by following repair guides and procedures.

10. How long does it take to repair OBDII code P1327 (Knock Sensor 2 Low Input)?

The time needed to repair P1327 can vary depending on the exact cause of the problem and the skill level of the person performing the repair. In general, it can take anywhere from 1 to 3 hours to diagnose and fix the issue.