its a little circle part that attatchs to the right side lower part on top of the engine its screwed on to the engine block vg model{Sohc}1994 gxe, the part has two little hose's coming out of it and its right above where the intake pipe connects to the engine i need to change this because whenever you rev the engine it makes a rattling noise anyone know's the name of it?

 

iacv? if you get a manual it will show you a picture of the engine compartment tell you what everything is