Help-Turbo Boost

OK so after doing some research on line and reading other peoples post with turbo boost issues am I wrong in assuming the following:

-probably not related to an O2 sensor which I believe controls the fuel supply because I don't have any loss of power??

-probably not a low pressure fuel pump because again I don't have any loss of power and no black smoke coming from the coach??

Opinions on whether it could be related to:

-leaking inter-cooler?? What symptoms exactly would that cause?? Where is that located??

-Could it be a hose leak somewhere and if so where should I be looking. Will it cause no boost to register and if so loss of power along with that?? Which I don't seem to have

fuel water seperator issue??

How bout something to do with the acuator??

-how bout just a simple electrical situation causing the gauge not to work properly??


I am new to troubling shooting diesel engine problems and really have never worked on them. This could very well be way over my head. Everyone's opinions would be greatly helpful

Thanks Dave