Cummins X15 after treatment issues

[tree98]

Did you reset the soot counter when you reinstalled the cans after cleaning? That counter only counts up and it doesn't know if the cans have been cleaned unless you tell it. This is easily done using insite.

If you run these engines with the exhaust pipe disconnected from the back of the turbo, do they smoke like crazy ?

What makes you think the turbo would be to blame for any of this? Are you also getting codes pertaining to the turbo ?