Quote:
Originally Posted by ReForMatt
The video didn't play when I clicked the link but ...maybe modify a oil cap with a vacuum gage with a line long enough to see it. Or maybe explain your catch can configuration. I had the issue but could hear it during idling removed the oil cap an could feel excessive vacuum putting my hand over the opening, adjusted my vacuum relief spring no more issues. Hope this helps narrow down some trouble shooting. Good luck 👍
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My catch can configuration is the VTT dual catch can setup with the VTT manifold. One goes to the TB and the other is VTA.
I can kinda hear a similar noise while at about 1k rpm at idle. It sounds like it is coming from on top of the valve cover in the back. I tried unplugging the banjo fittings that go to the valve cover for the catch cans and it was still there.