I just installed this aluminum EGR block off plate, and the more i tighten the nut that holds it in the more it leaks. Does anyone else have this problem? For now I used the bracket for the Egr valve on top of it and it seems to help. Is this how it is supposed to be? Also what should i do with the hose that comes from the solenoid? I took the little s hose off and plugged it. Is that all I need to do? Thanks