RiyadYar;1834753 said:if im not mistaken thats the aux air line that connects to the bypass valve or bov
Skeezix;1835500 said:I just put a 1-4 vacuum manifold off the intake. One runs to the fpu vsv then to the fpr, next goes to PS, other goes to BOV. 4th one is capped off and read my boost from the small nipple on the manifold by the firewall. Only vacuum lines on my car.
Skeezix;1836467 said:FPU seems like you got it figured, not exactly sure about using the small nipple for the BOV I have mine off the same large one the front of the manifold where the FPU source is, Where that original tree thing went lol. the small one I use for my boost gauge and I believe the heater control valve is t'd into that as well. Pretty sure that's what was originally there.