P22FF
SCR NOx Catalyst Inlet Temperature Too Low
P22FF is an OBD-II diagnostic trouble code meaning: SCR NOx Catalyst Inlet Temperature Too Low. Common causes: scr temperature sensor malfunction, problems with the exhaust system (leaks, damage). Estimated repair cost: $56–278.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Increased urea consumption (AdBlue)
- Increased NOx emissions
- Possible restrictions on engine operation in emergency mode
Causes
- SCR temperature sensor malfunction
- Problems with the exhaust system (leaks, damage)
- Low coolant temperature
- Malfunction of the urea injection system
- SCR catalytic converter clogged
How to Fix
- Check the readings of the SCR temperature sensors
- Inspect the exhaust system for leaks
- Check the operation of the urea injection system
- Diagnose the condition of the catalytic converter
- If necessary, replace temperature sensors or SCR system components
Related codes
Error P22FF by Vehicle Brand
FAQ
What does the P22FF code mean?
P22FF is an OBD-II diagnostic trouble code that indicates: SCR NOx Catalyst Inlet Temperature Too Low
What causes a P22FF error code?
The most common causes of P22FF include: SCR temperature sensor malfunction; Problems with the exhaust system (leaks, damage); Low coolant temperature; Malfunction of the urea injection system.
How do I fix a P22FF diagnostic trouble code?
To fix P22FF: Check the readings of the SCR temperature sensors. Inspect the exhaust system for leaks. Check the operation of the urea injection system. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P22FF?
Yes, but get it checked soon
How much does it cost to fix P22FF?
The estimated repair cost for P22FF is $56–278. Actual cost depends on your vehicle, location, and labor rates.
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