Vacuum Hose Question

[RYU]

Is there a "always on" vacuum line on the NSX? Meaning, it's always reading vacuum even at WOT and under boost. I know there's a vacuum control box that stores vacuum pressure for the various vacuum driven components like VViS plates but i'm not sure which one of the 1-5 lines (or elsewhere) stores vacuum all the time..

Hoping to find one I can tap into. Thanks for any help.

Here's a diagram I found. Ignore the call out for the #4 hose.

EDIT: When I say "always on" I meant always on when the engine is running.

 

[nikey22]

I can say that hose #5 does NOT have persistant vacuum, because that one controls the EGR valve lift when you are cruising. No vacuum at idle and no vacuum at WOT.

 

[RYU]

We can also rule out #3 (VViS) and #7 (FPR). #6 perhaps?

 

[Arshad]

Sorry to hijack the thread ... but can you order the NSX vacuum hoses in the US? I tried ordering them yesterday but Honda Canada says they are discontinued. They've suggested using regular hose (without the bend). Is there any downside to doing that?