boost gauge has been acting up lately, though i dont know if it is the gauge or the hose or if there is some kind of problem with the turbo. Gauge sometimes doesnt show any vacuum but when i step on it i will see normal pressure above 0. Vacuum seems to rest a little under 0 but i know it should be at 20. Any suggestions of what i should look for? I also noticed a small part of the hose has a pinch though i dont know if there is any kind of hole or not.