Cummins isx

[smorgan87]

1: Do you have insite software and a datelink?
2: has that high psi fuel pump been replaced or rebuilt in the past 300k-400k miles?
3: if yes to 1 id run a cutout test and rail psi test. Then id drain my oil thru a fine strainer and see what comes out.
4: if everything checks out from 3 id pull the actuator off the turbo and check the movement of the vg as well as compressor wheel play.