I hooked up my omori 52mm boost gauge when I first recieved it about a month ago, and have yet to get it to read anything. I tapped into the vaccum hose at the downward pointing brass nozzle coming off of the intake manifold. The gauge illumination is all tapped and working great, I just cant get it to read anything. Thaison from J-spec sent me a replacment sending unit, hooked that up, same thing, no movement of the needle. I am running out of ideas here, anyone have an idea of what could be wrong, other than the gauge is just dead?