I own a svl95 has about 330 hours on it nice and very strong machine. The problem I am having and still having is with the def system. I am getting codes e9521 And e9602 And the machine reduces power and goes into a limp mode. The codes are def and scr system related claiming def fluid deteriorated etc. I have drained the def tank, cleaned , and replaced fluid. Still does the same thing. I am assuming one of the sensors has some of the flaked up def fluid on it causing the problem but really don't know. owners manual fix says to take it into the dealer and that's that. But I hate having to take my machine in and the down time and everything else affiliated with the dealer. Does anyone have any help or feedback on this?