P22FA
NOx Sensor Performance - Slow Response High to Low Bank 1 Sensor 1
P22FA is an OBD-II diagnostic trouble code meaning: NOx Sensor Performance - Slow Response High to Low Bank 1 Sensor 1. Common causes: faulty nox sensor, nox sensor contamination. Estimated repair cost: $167–444.
Symptoms
- Increased fuel consumption
- Check Engine Light Illuminates
- Reduced engine power
- Increased emissions of harmful substances
- Unstable engine operation at idle
Causes
- Faulty NOx sensor
- NOx sensor contamination
- Problems with wiring to the sensor
- Engine control unit malfunction
- Problems with the SCR system
How to Fix
- Check the condition and connections of the NOx sensor
- Test the sensor electrical circuit
- Clean or replace NOx sensor
- Check the operation of the SCR system
- Update the engine control unit firmware
Related codes
Error P22FA by Vehicle Brand
FAQ
What does the P22FA code mean?
P22FA is an OBD-II diagnostic trouble code that indicates: NOx Sensor Performance - Slow Response High to Low Bank 1 Sensor 1
What causes a P22FA error code?
The most common causes of P22FA include: Faulty NOx sensor; NOx sensor contamination; Problems with wiring to the sensor; Engine control unit malfunction.
How do I fix a P22FA diagnostic trouble code?
To fix P22FA: Check the condition and connections of the NOx sensor. Test the sensor electrical circuit. Clean or replace NOx sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P22FA?
Yes, but get it checked soon
How much does it cost to fix P22FA?
The estimated repair cost for P22FA is $167–444. Actual cost depends on your vehicle, location, and labor rates.
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