Hello mechanics and truckers
I have been chasing this issue with my truck volvo vnl w d13 engine. I have some issue with the flex pipe between dpf and scr and also check engine light with code P20ee00. There is a lot of build up of crystalized def on the clamp by the dpf side the other close to scr dry as a bone. Cleaned the pipe installed new gaskets and after two hours crystallization formed again check engine light still on. What can be causing this issue ?
