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What sensor? All I see in your drawing is a solenoid valve #9 or #10.
After thinking about it, maybe this is still a resonating chamber (for noise) but it can open & close as controlled by the ECU.
intake air resonator, it's only activated at engine speeds between 2900-3800 rpms. otherwise air doesn't flow threw it lol, waste of space and time just rip it all out.