scr problem

[shoe128]

(09-02-2019 )Rawze Wrote:  * NOx sensors are notorious for reading incorrectly and only have an expected lifespan of 250k miles according to all papers I have read on their designs.

* As precous metals depleat in SCR,. DPF, DOC,... it becomes more and more difficult to satisfy the system, and it tends to use more and more DEF.

* If the injector tip is clogged and not spraying properly, or if it has become leaky then it will use more DEF.

* If cross-tubes for the DPF Delta-P are partially clogged, it will throw off the whole system.


Just some things to keep in mind. I am sure there are others.

{warning: the beer is talkin' tonite LOL.} ... holding my third Guinness extra-stout!.

ya injector new ,tube is new,lines checked ,
im not sure what steps to take next