Ok well i just installed a buschar racing intake in my evo 8 and i was not sure of what to do with the small hose that was connected to the stock intake. Not the one that is clamp on but the smaller one that you can just pull out, whcih looks like it is connected to a sensor. Please can someone help me out with this.

When i started the car it threw a code and when i was driving the car it litterally sounds like i have a hks ssq bov when i let go of the throttle so im kinda concerned. It also is stalling out but i guess that might be because it is not tuned. If anyone has any ideas why it sounds like this lemme know your ideas.