TOP END REFINISHING

[XfireZ51]

Originally Posted by Schrade

Found it. Right [near] the FPR vacuum connection to the plenum.

(turned out to be the plenum-to-PCV cap connector. It had a zip tie, and I hadn't replaced it)

Can't hear it too well in the vid; I tried to get the hose near the mike in the cam, but when I held the hose to my ear, it almost pulled out my brain cells. All 2 of 'em

http://www.youtube.com/watch?v=Hw0mfEs8bLk

So now, it's still idling with a 150rpm swing, 775 - 925...

Ok. Is IAC disconnected? If not, what does DM tell you for IAC counts and what is TPS V at idle? If it's not .57v > TPS > .53v, then adjust TPS with motor OFF.
START motor, then let it idle down. What happens? Still surging? Also, if you unplugged IAC, you should have done an IAC reset after plugging it back in.