So I just installed a prosport boost gauge, and when I turn the car on, the needle stays at 0. When I drive, the needle slowly moves down, and when I accelerate fast, it never reads any boost. I hooked up the vacuum line to a vacuum line coming right off the manifold (a line that eventually finds its way to the egr switch and valve. I should also mention that the clear vacuum line that came with the gauge was to short so I used a regular black vacuum line that was the same size in diameter. Could this be a problem? Any ideas would be great. Thanks.