I was look at at the line that comes from my intake to the IAC, and I want to know what the black box is for that is on the line? And what would happen if I removed it and just put a straight through hose to the IAC?

 

here is a pic of what im talking bout.

 

I have heard that its a needed filter and shouldnt be removed. I wouldnt remove it if I were you. Howcome you want to? Oh and that isnt the IAC, its the air check valve....

 

Im not going to remove it. I thought it was a baffle or something. I heard people calling it the IAC Valve (Idle Air Control) because I did that gasket mod that helps your rpms drop off quicker. Thanks I will definately leave it on.

 

wait no I was thinking IAT (intake air temp) but I just got confused. It may well be called the Idle Air Control valve...