Hear A Boost Leak but Where is it?

[pSimytSi]

So for the past week I've been having some sputtering issues at WOT, I think from a boost leak. Now, for the past 2 days I'm having almost the same problem while cruising a steady speed. While cruising, no certain speed or even rpms, sometimes the AFR gauge goes in the red to 18+ and the car sputters continuously. The only thing I found that stops it instantly is to engage/disengage the clutch or downshift..

Right now my ISC is bad, my FPS is bad, and I'm running the 255lph with stock FPR. It also has a big boost leak comming from under the throttle body elbow or around the ISC somewhere, but I can't seem to find it. It takes 3-5 seconds after pressurizing from the turbo inlet, and all that air is leaked out from somewhere under the TB elbow.

I know all these problems added together must be causing most of this so can you guys just point me in the right direction as to what will do what and where to find that huge boost leak?

Please help, I'm a newb but learning!

 

[wises4057]

replace the gasket. I'm trying to picture it in my head, and i think it's the gasket you need to replace.

 

[snowborder714]

Where on this picture are the bubbles coming from? Could possibly be FIAV or ISC.

You must be logged in to view this image or video.

 

[99RedGs]

Spray some brake/carb cleaner around the throttle body while the car is idling. If the RPM's jump this will also confirm you have a leak around there. Since the car should be under vacuum at idle it should suck some of the cleaner in and speed up the RPM's. A vacuum leake at idle could mean a boost leak under pressure. You can try this if you are worried about getting water in there or something.