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You will have to trace out the vacuum hoses to see what is what.
But if you have the one way valve reconnected.
Then that broken bit of hose in your first picture goes to the change over valve for the SAI
or it goes to a change over valve for your resonance flapper in the intake plenum.
Either way if you leave it disconnected your creating a vacuum leak in the system.
So things are not going to work properly with it disconnected.
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