I have a 84 euro 323i. I need some help with a few hoses. 1. Where does the vaccume hoses from the distributor lead to? 2. Where does the the hoses from the heated throttle bypass valve lead to( if this is not the correct name,it's the unit under the intake manifold. It has four hoses leading from it and it's made of metal).3.The vaccume lines from the throttle body? Please, any help will be appricated.