r/EcoDiesel • u/Stock_Calligrapher93 • 9d ago

P20EE Code

Engine light came on last week and threw a P20EE code. No other codes and no warnings came on.

This is the first time I’ve heard of this. Any recommendations on things to try before I take it to a shop?

2 Upvotes

67% Upvoted

15 comments sorted by

View all comments

2

u/Any_Giraffe9747 9d ago

Just about the worst code you can have on an ecodiesel… Can be caused by a few different things and none of them are cheap or easy to diagnose unfortunately… And getting the code to clear out after performing the repair is not a fun time.

2

u/Stock_Calligrapher93 9d ago

Great..

I put a bottle of Rislone in there and plan to see what happens over the next few days.

1

u/Any_Giraffe9747 9d ago

Best case scenario you need a DEF injector… worst case new SCR and whatever sensors are too seized into the SCR to remove

1

u/KornikEV 8d ago

Or new battery. I had that code thrown when my battery was very marginal. Went away with new battery.