2016 Lml Runs right after starting twice.

[DieselDan66]

So in a nut shell I am having issues with my truck having boost issue. I seem to have about 10psi while at light load like 10% or less throttle this will happen for miles and miles unless I give it more than 10% throttle or let off completely.

HOWEVER if I shut the truck off and restart it within 15 or so seconds everything is fine. Once I shut it off and let it sit longer than 15 seconds and restart it’s back to running weird.

Any ideas someone could offer ?

Iv been trying tons of tune revisions from Ppei with no change. I have to “double start” all of them to get it to run right.

Should I try a new ECM ? New tuning company?

Thanks for your help or any advice![