Squa5hbl0ss0m

Bought this car and trying to piece it back together cause someone doesn't know how to do things the right way.
Anyways, I was putting on my HPS CAI and saw this, it was attached at the throttle body to a metal nipple with a slight bend in it.

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*Administrator's Note: Example of Why you should Add your Vehicle and State What Year your Vehicle is to Your Signature.
As detailed in xile6 and udelslayer's posts below. Some Parts are Deleted from Previous Years. Also some Part Nos. are Superseded and No Longer Available.
ALWAYS State the Year of your Vehicle!

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xile6

Toyota black box.

Really dont know what it does. Its hook the the throttle body. First thought was that it was a check valve for idling but its drive by wire.
and these was remove in the newer tCs (08, 09 etc..)

I don't think its needed for anything since it doesn't do anything. More like something they thought to add but never got around to it.

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udelslayer

This box was present on the 06 intake, and the other side of it vented to atmosphere. On the 09 intake, the hose from the TB plugs directly into the intake manifold and the box was not present.

I'm guessing its a one way check valve with some kind of carbon filter since this could be emissions related junk.