Alright so i have searched about this topic but have not found what i am lookin for, On the TB adapter plate there is a big hold and small holes side by side, i know the small hole must be tapped and just put a bolt in it , but what is the larger hole to the side for? I have been looking and cannot find what i am suppose to hook up there, as the brake booster is hooked up to the top of the super, the hvac is hooked up to the small tube on the side of the TB adapter, the only thing not hooked up is the valve cover vent, and i dont get how you are supposed to hook it up the to TB adapter if that is what the larger hole is for.

Anyone help me out here , my car is obviously an ECO with the m62 charger on it.


2002 Cavalier ECOTEC 5SP (14.2s @ 35C)

EVAP. There's a plastic fitting that comes off the stock intake manifold and attaches to the adapter. The screw won't work though, you'll have to find a proper screw with matching fine threads.





14.330 @ 96.37mph

BlownBlackZ wrote:EVAP. There's a plastic fitting that comes off the stock intake manifold and attaches to the adapter. The screw won't work though, you'll have to find a proper screw with matching fine threads.

Thanks for the info, i started lookin through the pic i have of the NEW Kit and i am missing the PCV elbow to connect the EVAP to the adapter plate, i have the screw and the plastice tube already just missing the elbow so looks like i gotta order it monday.


2002 Cavalier ECOTEC 5SP (14.2s @ 35C)