have a random brand boost controller from amazon. using a 5 lb spring for the wastegate, with a vacuum line straight to the wastegate, the car boosts properly and maxes out at five pounds, with the boost controller plugged in and at the lowest setting car was boosting almost to 10 before I let off. I have taken it apart, and it seems to only be a spring and a little steel ball on the side further from the wastegate, put it back together, and tried to blow into it, nothing. getting the car tuned very soon and am very out of ideas, besides throwing a tee in place of the controller, i would very much like to get this controller working beforehand, any advice would be appreciated!