So since I am getting rid of the stock intake on my 99 ex d16y8, i needed another source to plug the intake side of the FIA valve to. Well, since i am sending the pcv valve to a catch can, am i able to just reroute this hole to the nipple where the pcv hose would normally go on the top front of the intake manifold?

 

by FIA are you referring to the fast idle thermo valve? (FITV). that doesnt have vacuum lines running to it. what does this have to do with forced induction?

 

Maybe he meant IAT? Install it in the charge piping before the throttle body just like factory.

Yes, you can plug that port as it is just a vacuum source...

 

Nope, fuel injection air system. This dude asked about it but theres no answer or follow up:
https://honda-tech.com/forums/honda-civic-del-sol-1992-2000-1/99-civic-d16y8-engine-vacuum-hose-question-3065442/

Essentially, i think it just needs a clean air feed. However, i know that the pcv dumps crap back into your intake and i dont know if theres anything else inside the mani where it plugs in, so i want to make sure its a safe port for "clean air". This would save me from finding a new source for the FIA and having to plug the intake (i know the latter is no biggie).

Edit: also wondering if its ok if the valve sees boost

 

whoops, thought he was talking about the intake manifold not air intake.