Need help identifying where these parts go?

Thanks.

One on the left im pretty sure is a vacuum idle up thing, and bolts onto the intake manifold, all manifolds have the little spots for it to bolt on to, but only some actually have the holes drilled and tapped in them.

Not too sure on the middle one

Part on the far right looks like it holds wires in place, my sunny has one and it goes between the engine mount and the mounting bracket off the block

It is TCVAS

Thanks guys. DD i read the tech wiki article. Im thinking to leave these parts off because im using a 60 series 5 speed and might drive in cold weather.

Whats your recommendation?