New ¾ block, growing pains. New turbo, too!

I can't nail down this persistent code. SPN 3464/FMI 16. Even after my 1.1m mile DD15 gave up the ghost and I replaced it with a brand new ¾ block GHG14. The initial 50 miles of the break in destroyed the oil breather and spewed oil from below with some obvious squealing at subsequent start up. Checked the compression, checked the pvc tube, check the turbo, replaced the spinner. She pushed a little oil out the next 500 miles (forced to bobtail) and then settled in. Broken in gradually, varying rpms and starting with light load. 5,000 lbs, 10,000 and finally 40,000lbs up through the hills of Ontario, Canada. Around 1200 miles this code returned. I had this code persiatently on the old engine. Occasionally I'll clear it but it'll likely come back later in the day or the next. Then it added SPN 3936/FMI 18. DOC inlet pressure delta below normal.

I changed the oil at 2,000 miles and cut open the filter. I feel there was a normal and acceptable level of metal in the folds.

Replaced it with another round of Rotella T4 15W40 and carried on with the same load across the prairie and into the Rocky mountains. At around 3,500 miles and both codes persistent i sprayed MAF cleaner on the input manifold pressure sensor and started back up the mountains empty. That seemed to rid me of SPN 3936, which was the opposite of what i expected. Around 3,800 miles she started billowing smoke into the cab. At first I looked for something burning as there were no obvious leaks in the exhaust, but it did have an odd odor. This carried into next day before it stopped, forcing me multiple times to try and find something melting.

I've attributed it to the bypass gas pressure from breakin pushing oil and diesel into the DPF filters or for some mysterious reason the sensor cleaning suddenly delivering enough air to aid the rolling regens that burned off the bypass residual deposits from the breakin. Make sense? I'm probably way off but this seems to make sense to me. At about 5,000 miles and no more sign of smoke or exhaust odor, I replaced the input manifold pressure sensor, confident it was the culprit.

I've not done an Active regen as the engine is still breaking in IMHO and I do not want to torture test it at 1200° for 45 minutes, even though i think this might clear the SPN 3936/FMI 18.

Also to note, after replacing the manifold pressure sensor some counts of SPN 102/FMI 16 occurred. I've not yet pulled the Delta-P off and checked the ports, but will tomorrow. There's lots of butterfly's and stuff on the grill that may be affecting air flow as per SPN 3464 that I have to pressure wash off, too, before leaving Sunday.

The One-Box is 2-3 yrs old and the DPF filters about a year. It sounds great and has lots of power. None of these codes are illuminating anything but the MIL and I've experienced no derates.