Need help understanding "New" codes in Paccar engine.

Yep, thats why Im trying to educate people. If I had bought a Cummins, I could go to any other shop (Freightliner, Cummins, or an independent shop) but Im stuck with no other outlet and my one choice has no clue what to do. Now I learn that no independent shops have software to work on my engine so I can't even do the delete. I guess its time for a 6NZ.... Oh wait! I spent all my money trying to get this Paccar running so I can't even afford to swap engines now.

 

Put a new turbo actuator on, cleaned DPF and EGR... 600 miles I got 6 new codes that I have never seen, EGR Delta Pressure, DPF inlet pressure too high, and a few unknown "411" codes (chassis). All at the same time which was a few minutes after a very scary re-gen. Driving at 70 MPH I saw a cloud in my mirror and smelled raw diesel fuel. I stopped and got the "Re-gen required" message. I started a manual re-gen and it caused a cloud that completely engulfed the truck. I grabbed my computer and paperwork out of the truck and hoped for a fire.... No such luck, just a ton of codes.
I now have an oily black soot dripping from my DPF box. None of that smoke that covered my truck came from the stacks, it was all coming from the DPF.

 

Oh, I shut the truck off for a few minutes when it said "STOP ENGINE". I started it a few minutes later, no codes, truck runs like brand new. I have 100 miles since all that with absolutely no issues, unfortunately Paccar never thought to have a "save" option in the ECM so if it isn't doing it when they plug in, they won't know what caused it. They will see the numbers in the history but they don't know what they are. Paccar doesn't know what a SPN:3936 is, they don't know what SPN:3610 is or a SPN:724. So whatever caused that smoke can't be diagnosed unless its doing it when they plug in. Brilliant forethought isn't it?
Oh, I also had a SPN:3251 that was "Particulate Trap Pressure", I know that because it did it when they were plugged in once (pure luck that they got that recorded).

 

Paccar Corporate thought the same thing... If a "stop Engine" or cel comes on it will save it. Why then do I get several unrelated FMI and SPN's that come up on the dash, i write them down shut the truck off.... A few hours later they are gone... Never existed. So they can't "replicate". Thats what they keep saying "everything looks fine".
WHY THEN do I have soot dripping down my DPF housing, a cloud of blue smoke covers my truck the entire time its doing a re-gen? It won't do a passive re-gen, and I have a ding ding ding "chime" and bright red "STOP ENGINE" the entire time its doing the re-gen?
three months into this, they can't diagnose it until it happens while they are plugged into it.
I didn't just talk to one tech out in the shop, this started there, went to Rush management, Paccar management, then Rush corporate, Paccar engineers in Renton WA, Peterbilt Motors in Denton Tx....
Bottom line: The company that designed, built, sold, and service this truck have NO IDEA how to fix it. They can't diagnose what is wrong with it. This would have been considered a "lemon" and been replaced if it were new. Paccar can not survive if they have to replace every truck with after treatment issues for the next 10 years. Obviously they won't replace used trucks that have 400K on them. They have been very patient and spent countless hours and thrown tons of parts (at no charge to me) at it. But in three months the truck has been on the road two weeks. This Paccar experiment has destroyed me financially.
My hope is to educate potential truck buyers, if you own one or two trucks and can't survive having a truck spend that much time in a shop, stay away from this experiment... Buy a proven power plant.