P22FE 2018 GMC Sierra Code - NOx Sensor 2 Performance - Sensing Element
Quick Answer
The P22FE diagnostic trouble code (DTC) in a 2018 GMC Sierra indicates a problem with the NOx Sensor 2's performance, specifically related to the sensing element. Common causes include Contaminated sensing element, Wiring issues, Sensor malfunction. 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 2018 GMC Sierra indicates NOx Sensor 2 Performance - Sensing Element.
- Common causes
- Common causes include Contaminated sensing element, Wiring issues, Sensor malfunction.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P22FE 2018 GMC Sierra Description
The P22FE diagnostic trouble code (DTC) in a 2018 GMC Sierra indicates a problem with the NOx Sensor 2's performance, specifically related to the sensing element. The NOx sensor plays a crucial role in monitoring the levels of nitrogen oxide (NOx) emissions in the vehicle's exhaust system. This sensor is responsible for detecting the amount of NOx gases produced during combustion and sending this data to the engine control module (ECM). The ECM then adjusts the air-fuel mixture to reduce emissions and improve overall engine performance.
Common Causes of P22FE 2018 GMC Sierra
- Contaminated sensing element
- Wiring issues
- Sensor malfunction
- Exhaust leaks
- ECM problems
Symptoms of P22FE 2018 GMC Sierra
- Decreased fuel efficiency
- Engine misfires or rough idling
- Illuminated check engine light
- Increased emissions output
- Reduced engine performance
How to Fix P22FE 2018 GMC Sierra
- Begin by diagnosing the specific cause of the P22FE code using a diagnostic scanner to pinpoint the issue.
- Inspect the NOx Sensor 2 and its wiring for any signs of damage, contamination, or corrosion.
- Clean or replace the sensing element of the sensor if it is contaminated with debris.
- Repair any wiring issues or replace the sensor if it is malfunctioning.
- Clear the DTC and reset the ECM to see if the issue has been resolved.
Cost to Fix P22FE 2018 GMC Sierra
The cost of repairing a NOx Sensor 2 performance issue can vary depending on the specific cause of the problem and the labor rates in your area. On average, the parts for a NOx sensor replacement can range from $200 to $500, while the labor costs can be between $100 and $200. Overall, the total repair cost for addressing a P22FE code in a 2018 GMC Sierra could range from $300 to $700. It's important to note that these are rough estimates, and actual costs may vary based on the factors mentioned above.
Need more information about the P22FE 2018 GMC Sierra code?
Need more information on how to fix the P22FE 2018 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P22FE 2018 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P22FE 2018 GMC Sierra Code
1. What does the OBDII code P22FE mean on a 2018 GMC Sierra?
P22FE indicates an issue with the performance of the NOx (Nitrogen Oxide) Sensor 2's sensing element, typically located downstream in the exhaust system.
2. What are the common symptoms of code P22FE on a 2018 GMC Sierra?
Symptoms may include the Check Engine Light turning on, reduced fuel efficiency, decreased engine performance, or the vehicle entering limp mode.
3. What causes the P22FE code to appear on a 2018 GMC Sierra?
Common causes include a faulty NOx sensor, wiring or connector issues, excessive soot buildup on the sensor, or a malfunctioning exhaust system component.
4. Can I drive my 2018 GMC Sierra with the P22FE code?
It’s not recommended to drive for extended periods with this code, as it may lead to increased emissions, reduced performance, and potential damage to the exhaust system.
5. How do I fix the P22FE code on a 2018 GMC Sierra?
Repairs may involve inspecting and cleaning the NOx sensor, repairing damaged wiring, replacing the faulty NOx sensor, or addressing issues with the exhaust system.
6. How much does it cost to fix the P22FE code on a 2018 GMC Sierra?
Replacing the NOx sensor can cost between $300 and $600, including parts and labor, but costs may vary depending on the diagnosis and additional repairs needed.
7. Where is NOx Sensor 2 located on a 2018 GMC Sierra?
NOx Sensor 2 is typically located downstream in the exhaust system, after the catalytic converter.
8. Can a bad NOx sensor cause other problems on a 2018 GMC Sierra?
Yes, a bad NOx sensor can cause poor performance, increased emissions, and may lead to the vehicle going into limp mode.
9. How do I prevent the P22FE code from recurring on my 2018 GMC Sierra?
Regular maintenance, using high-quality fuel, and ensuring the exhaust system components are clean and functioning properly can help prevent this code.
10. Do I need to reset the code after repairing the NOx sensor issue?
Yes, after completing repairs, you should clear the code using an OBDII scanner to confirm the issue is resolved.
Discuss the causes and fixes for P22FE 2018 GMC Sierra OBDII Code
Code P22FE 2018 GMC Sierra comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.