turbo cuts out??
 

NEED HELP! I was given this truck and know nothing about diesel. with that being said, the truck ran great then the breaks went out so I replaced the brake booster. Now the turbo cuts out at 18lbs?? could it be something I broke or disconnected while replacing the booster???? its a 1994 2500 5.9 12 valve single turbo with 167000 miles. Thanks for ant help....