CM2350 Derate-Low DEF

[Rawze]

What are the exact fault codes that you are getting in Insite?.

Is a bad DEF sensor?.. or is it actually low on DEF fluid??.

It is also not healthy just to keep re-flashing the ecm over and over. They do have a limited number of times they can be flashed, before wearing out the flash memory in them (depends on how old ecm is too)... albiet, it is quite a high number.

I.E.> Why not get a new sensor and fix the issue properly like you should be doing, instead of trying to "cheat the ecm", eventually causing SEVERE ENGINE DAMAGE, as that exhaust system clogs up more and more, you driving for the next few weeks against all the back-pressure that is building up.