Air Sensor Or Other Thing

[Elio]

Hi Guys,

I have bought Yaris 1.3 recently, but when I have checked motor I found an tube disconeted (tube 1 in picture) and my question is if this should be disconnected or not and what is this device where tubes 1 and 2 are connected.

Thanks you in advance for everyone.

[Madasafish]

Canister purge valve. And yes it should be connected.

"Canister Purge Valve

The canister purge valve allows stored fuel vapors in the containment canister to be recycled back into the engine combustion process when necessary."

http://repairpal.com/canister-purge-valve