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P22FE 2014 GMC Sierra Code - NOx Sensor 2 Performance - Sensing Element

Quick Answer

The P22FE diagnostic trouble code for a 2014 GMC Sierra specifically relates to the NOx Sensor 2 Performance - Sensing Element. Common causes include Faulty NOx sensor, Wiring or connector issues, Exhaust system leaks. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P22FE 2014 GMC Sierra indicates NOx Sensor 2 Performance - Sensing Element.
Common causes
Common causes include Faulty NOx sensor, Wiring or connector issues, Exhaust system leaks.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 15, 2024
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Code P22FE 2014 GMC Sierra Description

The P22FE diagnostic trouble code for a 2014 GMC Sierra specifically relates to the NOx Sensor 2 Performance - Sensing Element. This code indicates that there is a performance issue with the sensing element of the NOx sensor, which is responsible for monitoring the levels of nitrogen oxides in the exhaust gases. The NOx sensor plays a crucial role in ensuring that the vehicle meets emissions standards and operates efficiently.

OBDII Code P22FE 2014 GMC Sierra - NOx Sensor 2 Performance - Sensing Element
P22FE 2014 GMC Sierra Code - NOx Sensor 2 Performance - Sensing Element

Common Causes of P22FE 2014 GMC Sierra

  1. Faulty NOx sensor
  2. Wiring or connector issues
  3. Exhaust system leaks
  4. Engine misfires
  5. ECM software issues

Symptoms of P22FE 2014 GMC Sierra

  1. Check Engine Light illuminated
  2. Reduced engine power
  3. Decreased fuel efficiency
  4. Failed emissions test
  5. Rough idling or misfiring

How to Fix P22FE 2014 GMC Sierra

  1. Diagnose the issue by using a scan tool to read the code and determine the specific problem with the NOx sensor.
  2. Inspect the wiring and connectors for any damage or corrosion, repairing or replacing as needed.
  3. Test the NOx sensor to ensure it is functioning properly, replacing it if necessary.
  4. Clear the code and reset the ECM to see if the issue has been resolved.
  5. Perform a test drive to verify that the repair was successful and that the Check Engine Light does not reappear.

Cost to Fix P22FE 2014 GMC Sierra

The typical repair costs for addressing a P22FE code on a 2014 GMC Sierra can range from $200 to $500, including parts and labor. However, it is important to note that specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Auto repair shops commonly charge between $80 and $150 per hour for labor, with rates potentially higher in metropolitan areas or at dealerships, and lower at independent shops. It is recommended to check local rates for a more accurate estimate.

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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 P22FE 2014 GMC Sierra Code

1. What are the common symptoms of OBDII code P22FE in a 2014 GMC Sierra related to the NOx Sensor 2 Performance - Sensing Element?

- Common symptoms may include reduced fuel efficiency, engine hesitation, and illuminated Check Engine light.

2. What are some possible causes of the P22FE code in a 2014 GMC Sierra?

- The code may be triggered by issues such as a faulty NOx sensor, damaged wiring, or a problem with the sensing element.

3. How can I diagnose the NOx Sensor 2 Performance - Sensing Element issue in my 2014 GMC Sierra?

- Diagnosis typically involves using an OBDII scanner to retrieve the specific code, inspecting the NOx sensor and its connections, and checking for any related issues.

4. Can I continue driving my 2014 GMC Sierra with the P22FE code related to the NOx Sensor 2 Performance - Sensing Element?

- It is not recommended to continue driving the vehicle with this code present, as it can lead to potential engine and emission system problems.

5. How can I repair the NOx Sensor 2 Performance - Sensing Element issue in my 2014 GMC Sierra?

- Repair options may include replacing the NOx sensor, repairing damaged wiring, or addressing any issues with the sensing element to resolve the code.

6. Will resetting the OBDII code P22FE in my 2014 GMC Sierra make the issue related to the NOx Sensor 2 Performance - Sensing Element go away?

- Resetting the code may temporarily clear the Check Engine light, but it will not fix the underlying problem causing the code to trigger.

7. Are there any maintenance tips to prevent the recurrence of the P22FE code in my 2014 GMC Sierra?

- Regularly inspecting and maintaining the NOx sensor, ensuring proper fuel quality, and following recommended service schedules can help prevent the code from reoccurring.

8. Can a DIY enthusiast fix the NOx Sensor 2 Performance - Sensing Element issue in a 2014 GMC Sierra?

- While some may attempt DIY repairs, it is recommended to have the issue diagnosed and repaired by a qualified mechanic to ensure proper resolution.

9. How much does it typically cost to repair the NOx Sensor 2 Performance - Sensing Element issue in a 2014 GMC Sierra?

- Repair costs can vary depending on the exact cause of the problem, but they may range from a few hundred to over a thousand dollars, including parts and labor.

10. Is the NOx Sensor 2 Performance - Sensing Element problem common in 2014 GMC Sierra vehicles?

- While not extremely common, issues related to the NOx sensor and sensing element can occur in 2014 GMC Sierra vehicles, especially as they age and accumulate mileage.

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