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Vacuum leak


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This is on the driver side intake manifold.  I have a vacuum leak I think, and I am thinking this is at least 1 of them,if not the only one.  I can't find in PET where the hose for this connection goes to, only the pn for the elbow.  Anyone know or have any idea's?  The part that is broken is pn:  999-230-498-40

I have a video too if you want to watch: https://dl.dropboxusercontent.com/u/6314076/Boxster/2017-02-01 04.08.56.mp4

 

vacuum%20leak%20-%20intake.jpg

Edited by stlBoxster
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hmmmm . . . , I'll have to check the condition of mine. Every once in a blue moon I get a "difference" in power that, to me, seems like a vacuum issue. I've never taken the time to inspect the vacuum lines but it's on my list of things to check over. Thanks for highlighting. 

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How did you confirm this is the source of the vacuum leak ?What code did you get - P0300 or another ? Is the rough (?) running worse at idle ? Fuel Trims?

There are several potential methods to locate and confirm  the leak. Which did you use?

1. Smoke machine

2. Propane

3. Carb cleaner/starting fluid(!!!)

4. Engine ear

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