lid question...
If so, you probbly are talking about the IAT sensor for your A.I.R. system.
What year is your car and what year lid did you order?
If you disconnect the hose and plug the hole you will need to put a breather on the end of the hose that you disconnected.
As mentioned by SweetTbone you could delete your whole AIR system if you want to clean your engine bay up a little.


