Boost Gauge help with Pictures

[Bean]

crap material... just to be clear, if you suck and blow into the white hose you get proper readings on the gauge? also disconnect the black hose and suck and blow though it while blocking with and without blocking the other end to see if air A goes through and B if it's sealing right - pending on the results, assuming you have good vacuum readings on the black hose to begin with the only ? will be the crush tube fitting or whatever fault you'll find.

[Okami]

yeah its stupid as F***!

I have checked all of it just now...

When I remove the screw it seems like it doesn't build pressure towards 0.0
So when screw removed it gives me the -0.4 at idle

When the screw is back in it gives me 0.0 so that would be good...

But when I then punch in the gas I only get a little bit of movement so it then doesnt have enough pressure or air to put through...

I have 1 extra head without a screw... it seems to be a bit smaller - thats the only thing I can try.

Other than that I can try and link 1 hose to the boost meter with 1 diameter.

Those are the only 2 options I can think of right now.