Right so I have found a vacuum hose connected to the top of the engine intake (I believe that is what it is called, correct me if I am wrong.) It has a screw in the end and if you remove it while the engine is running it appears to be sucking air in. Car is a BA11F1 Astina Hardtop - 2.0 V6
http://1drv.ms/1HcgMyi Photos located at this link.