Fault: poor quaity DEF

When is the last time you did the DEF filter? And flush the tank when you can for sure

 

Just ignore it.
I used to get that code on a T-680 I had and it would eventually disappear in short time.

Never caused any issues

 

OTR Diagnostics

 

My Kenworth would clear that particular code after a certain amount of key cycles. Used to get a low fuel pressure code after fuel filter changes. That code would also disappear after key cycles.

 

Not an additives person, how ever this is the one exception. It seems to work.
Usually dump one bottle in the DEF tank at every PM, that’s like 6 bottles per year.

DEF Crystal Clean® Diesel DEF & SCR Emissions System Cleaner | Rislone

 

You’ll still have downtime with a warranty, just saying. But everything else on your list would make up for it. Lol.

 

When I was growing up, my dad had a string of Chrysler cars, and I always had a spare ballast resistor in the glove box because those things fail often. Carry a few spares, or be ready for un-expected weekend vacations in Podunk........

 

New and under warranty does not necessarily translate to better