Had p 2262 code come up, dealership replaced turbo under warrenty and now after about 500 miles same code came back on. Any ideas what it could be?

 

Turbo vaines are sooted up again... Take it back

 

I had 4 turbos sooted up within the 1st 30k. I finally did the DPF delete. Upon removing the pressure tubes I noticed the rubber elbow to the differential pressure sensor was cracked. I think it gave a false reading that the differential pressure was to high and it kept doing the regen. Id check the line going to the sensor. (under the passanger floor pan). Good luck.