Originally Posted by S_Lee

Update:
Did the smoke test today and was 98% sure the smoke was coming out of this little port-hole on the rear plenum:

I called my wife out and asked "where's the smoke coming from" She points to that and said "from that little black nipple"
Soooooo, how common is it for that to leak and I'm guessing a new plenum is in order huh?
I didn't see anything else in that area as far as hoses that would/could leak either.
It did build up quite a bit of pressure before smoking and blowing the smoke machine adapter out of the intake into my face...so small leak as the code did say.

Edit: it's the pivot-point for the resonance flap...found a thread where a guy found little caps that fit, so I'm gonna try that for the time being

Originally Posted by islaTurbine

Search for a thread that I’ve previously made that gives a solution to this, which is what De Jeeper is describing.


Edit: shame on me for not reading your whole post. It sounds like you found my old thread about this.