Hi,
just wondering if anyone has one of these BOVs? my car has one and it has 2 vacuum nipples and only one is connected, the one on the rear is not connected and seems to blow air when the car is in vacuum.

does anyone know why the 2nd nipple is there and if it should be connected to something??

my car is making a strange noise when in vacuum so i thought this might have something to do with it??

thanks for any help you can give.