I searched and searched and found nothing, also read the sticky on the swap.
i just did my swap a few days ago and everything went fine except for a fuel issue. i have a 08 Tahoe engine and i put a 05 GTO intake on it. well the tahoe has 2 fuel lines running to the intake one for supply and the other is a i dunno line... it has some sort of sensor on it that connects to my wiring harness. Now the new intake just has the one hook up so now im confused what this other line is for and do i need to hook it up?

Thanks for any help
Ken