what is the purpose of the hose that connects at the top of the of the valve body on the engine to the intake piping..

also what about the 2 hoses that connect from the intke to near the throttle body

and the very small hose that is in the same area..

basically..what do all thsoe hoses that coem from the intake pipin do..

 

see the pics on page four of my homepage the hose in the back is a IAC hose (Idle air control) the smaller hose is an EGR hose and the one in the front is the crankcase breather hose.