P20EE
SCR NOx Catalyst Efficiency Below Threshold Bank 1 Catalyst 1
P20EE is an OBD-II diagnostic trouble code meaning: SCR NOx Catalyst Efficiency Below Threshold Bank 1 Catalyst 1. Common causes: contaminated or damaged scr catalyst, low level or poor quality of reagent (adblue). Estimated repair cost: $167–556.
Symptoms
- Increased fuel consumption
- Reduced engine power
- Check Engine Light Illuminates
- Unpleasant exhaust smell
- Increased NOx emissions
Causes
- Contaminated or damaged SCR catalyst
- Low level or poor quality of reagent (AdBlue)
- NOx sensor malfunction
- Problems with the reagent injection system
- Engine control unit malfunction
How to Fix
- Check the level and quality of the reagent (AdBlue)
- Check the condition of the SCR catalyst for contamination or damage
- Check the operation of NOx sensors and their wiring
- Check the reagent injection system for leaks or blockages
- If necessary, replace the SCR catalyst or NOx sensors
Related codes
Error P20EE by Vehicle Brand
FAQ
What does the P20EE code mean?
P20EE is an OBD-II diagnostic trouble code that indicates: SCR NOx Catalyst Efficiency Below Threshold Bank 1 Catalyst 1
What causes a P20EE error code?
The most common causes of P20EE include: Contaminated or damaged SCR catalyst; Low level or poor quality of reagent (AdBlue); NOx sensor malfunction; Problems with the reagent injection system.
How do I fix a P20EE diagnostic trouble code?
To fix P20EE: Check the level and quality of the reagent (AdBlue). Check the condition of the SCR catalyst for contamination or damage. Check the operation of NOx sensors and their wiring. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P20EE?
Yes, but get it checked soon
How much does it cost to fix P20EE?
The estimated repair cost for P20EE is $167–556. Actual cost depends on your vehicle, location, and labor rates.
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