P20F0
SCR NOx Catalyst - Over Temperature Bank 2
P20F0 is an OBD-II diagnostic trouble code meaning: SCR NOx Catalyst - Over Temperature Bank 2. Common causes: scr temperature sensor malfunction, problems with the urea injection system. Estimated repair cost: $167–556.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Possible unpleasant odor from the exhaust system
- Increased urea consumption (AdBlue)
- SCR error message on dashboard
Causes
- SCR temperature sensor malfunction
- Problems with the urea injection system
- SCR catalyst clogged
- Malfunction of the electronic control unit
- Damage to sensor wiring
How to Fix
- Check SCR temperature sensors
- Diagnose the urea injection system
- Clean or replace SCR catalyst
- Check wiring harness and connections
- Update ECU software if necessary
Related codes
Error P20F0 by Vehicle Brand
FAQ
What does the P20F0 code mean?
P20F0 is an OBD-II diagnostic trouble code that indicates: SCR NOx Catalyst - Over Temperature Bank 2
What causes a P20F0 error code?
The most common causes of P20F0 include: SCR temperature sensor malfunction; Problems with the urea injection system; SCR catalyst clogged; Malfunction of the electronic control unit.
How do I fix a P20F0 diagnostic trouble code?
To fix P20F0: Check SCR temperature sensors. Diagnose the urea injection system. Clean or replace SCR catalyst. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P20F0?
Do not drive — repair immediately
How much does it cost to fix P20F0?
The estimated repair cost for P20F0 is $167–556. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat