P20EE00 is a very tricky code because the code description is not always true, involving aftertreatement system, the cause is not always the same, when the ambient temp goes down (cold weather) and for trucks who are not pulling hard (lite load operation) it's worse because heat is missing in the SCR then the DEF cannot react like expected and after awhile the P20EE00 occured. Ben
I have same code on my 780 Volvo 2015 i thought its N0x sensors I want a Volvo dealer they diagnosed the and said your computer needs an update and they updated clear the code good to go, after two weeks driving it come back again then I want another dealer they said I need to clean my PDF filter I said okay they cleaned the PDF filter and the code. After 1 week again it come back and I still have it now don’t know what do from this point. Usually it pups up when I am hauling heavy loads . Any advice or idea will be appreciated thanks Code P20EE00
Very often than code is due of SCR low efficienty. A suggestion run two Chrytal Sublimation back to back (Volvo software is require) and you can be ok for a little while. Ben
Had that code come up in mine, the dealer ran the code reader on it and it came up as an Exhaust Aftertreatment Fuel Pressure Circuit Range Performance. Service Tech said that it was most likely an AHI module that needed to be replaced.
Heavy rain today around Indianapolis and i got this code,only 30k miles on the truck,i am pretty sure its gonna fix itself because it happened at 10k miles and it went away itself
