s14 cold pipe help

[Breakbeat93]

on the s14 cold pipe there is a large tube coming off the main charge pipe. too big to be vacume. ive done a lot of searching and no one seems to make mention of it. what does it connect to?

thanks in advance

[sean350z]

Largest tube should be your recirculation valve...smaller one goes to your IACV

[Breakbeat93]

thanks for the response. i think it would have to be something else tho. cant recirc from a charge pipe to a charge pipe. anyone else know?

[jdo180]

nope
iacv 100%

[DinoMan]

Pretty sure its your iacv...