AutoCodesGeneric – P1322

P1322 Code - Knock Sensor 3 Signal Too High

Quick Answer

P1322 indicates Knock Sensor 3 Signal Too High. Common causes include Faulty Knock Sensor 3, Knock Sensor 3 harness is open or shorted, Knock Sensor 3 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
P1322 indicates Knock Sensor 3 Signal Too High.
Common causes
Common causes include Faulty Knock Sensor 3, Knock Sensor 3 harness is open or shorted, Knock Sensor 3 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 6,563
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 09, 2019
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Code P1322 Description

OBDII Code P1322 - Knock Sensor 3 Signal Too High - AutoCodes.com
P1322 Code - Knock Sensor 3 Signal Too High

What are the Possible Causes of the DTC P1322?

  • Faulty Knock Sensor 3
  • Knock Sensor 3 harness is open or shorted
  • Knock Sensor 3 circuit poor electrical connection

How to Fix the DTC P1322?

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 P1322 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 P1322 code?

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Need Help with the Code?

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Information for Specific Makes

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 P1322 Code

1. What does OBDII code P1322 mean?

P1322 indicates that the signal from Knock Sensor 3 is higher than the ECU's expected range, suggesting a potential problem with the sensor or its circuit.

2. What are the symptoms of code P1322?

Common symptoms include engine knocking, reduced performance, poor fuel economy, and possibly an illuminated check engine light.

3. What causes the P1322 code?

Causes can include a faulty knock sensor, damaged sensor wiring, a poor electrical connection, or engine issues like excessive knock or detonation.

4. Can P1322 damage my engine if ignored?

Yes, ignoring this code may lead to prolonged engine knocking, which can cause severe engine damage over time.

5. How do I diagnose the P1322 code?

Start by inspecting the wiring and connectors for damage, testing the knock sensor’s resistance, and checking for any related engine issues like excessive knock.

6. Can a bad knock sensor trigger the P1322 code?

Yes, a faulty knock sensor is one of the most common causes of this code.

7. How do I fix the P1322 code?

Repairs may include replacing the knock sensor, repairing damaged wiring, or addressing underlying engine knocking issues.

8. Is it safe to drive with the P1322 code?

Driving may be possible, but it's not recommended as it can lead to engine damage if knocking persists.

9. How much does it cost to fix the P1322 code?

Repair costs vary but typically range from $150 to $400 depending on whether the knock sensor or wiring needs replacement.

10. Can I clear the P1322 code without fixing the issue?

You can clear the code temporarily, but it will likely return unless the underlying problem is resolved.

Discuss the causes and fixes for P1322 OBDII Code

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