E46 320d Vacuum take off...Positions?

My 2004 model has 3 vacuum pipes coming off the rail, with one blanked off.

Does anybody know where the 3 pipes actually go? I have a EGR bypass, but no tube left, if I want to refit the EGR.!!
I've obviously put a vacuum pipe on somewhere else, as I didn't strip the engine down, but rebuilt and refitted everything, sort of blind...
The car runs/idles well, etc., but feels flat...
H-E-L-P.!!!

I have a training manual for your engine, however I’ve just moved house. If I can find it I’ll take a pic of the relevant page.

Thank you, Helix...I didn't see this until now.!!