RE: CM2250 boost

[Rawze]

first and foremost, have the program double checked and inspected by one of the recommended ppl here or myself via sending it to me in e-mail to ensure you don't have a bad de-mandate. Most drivers cannot tell until its too late and your looking at a blown head gasket, dropped liners, etc.

Other than that, it sounds like you have maybe turbo or actuator going bad?

Lastly, make sure your exhaust is 100% hollowed out. Otherwise it will block up and cause boost and other issues leading top turbo and engine failures. If you suspect exhaust back-pressure problems, disconnect the exhaust pipe behind the turbo, test drive it, and see if there are any power or boost gains. if there is, then you have exhaust restriction problems.

BTW: anything more than about 34-36 psi boost on a CM2250 can quickly cause severe engine damage, especially on one that has been de-mandated.