Question

2011 Dodge Ram 5500 6.7L Diesel with ODB code P20EE, what could be the cause of the code?

Answer 1

P20EE DODGE - SCR NOx Catalyst Efficiency Below Threshold Bank 1
Read more: https://www.autocodes.com/p20ee_dodge.html

** For the 2011-2012 Ram 3500, 4500, and 5500 there is a factory service bulletin that recommends replacing the Selective Catalyst Reduction (SCR) Catalyst assembly if exhaust fluid leaks are found or there are no signs of DEF fluid contamination found

Answer 2

possibly ur particulate filter is clooged from running low on def fluid