Also... make sure the one end of the hose for the fuel evap (purge) valve is connected to the underside of the throttle body housing BEFORE you mount the intake.. unfortunately I had to find out the hard way.[/QUOTE]
Pickncrew, is the fuel evap valve the one in the middle of you 1st engine pic above with the plastic hose and rubber hose as a connector? The reason I ask is cuz I just did my OSV replacement and it wont idle now and I think I put that connection back in the wrong place cuz it's a blind connection when working from above

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Okay, I think I've identified that part to be the fuel tank vent valve and the hose should be connected to the throttle body, right?
RealOEM.com BMW E83 X3 3.0i FUEL TANK BREATHER VALVE