Help! Cm2250 started boosting 40+ psi

[Rawze]

And do a full EGR tune-up on while you are at it.

Rawze Wrote:Diesel engines produce a lot of soot and the entire EGR and intake system attached to them slowly build up with it. This soot buildup gets in all the piping and sensors and it is known as "EGR congestive failure". That congestion is the most common cause of repeating emissions system and DPF woes that most drivers face. Sometimes the entire intake and EGR system needs to be removed and cleaned out. It is this same overlooked maintenance that makes your fuel economy slowly drop over time, costing you thousands and thousands of dollars in extra fuel making your engine and truck less and less profitable. As a truck owner, learning to service, change or clean emissions system sensors and components will in fact save you tens of thousands of dollars and keep you going where others struggle and fail.

ref: http://rawze.com/forums/showthread.php?t...1#pid23991