The mess under the intake

[Choking Hazard]

If it really is open on the bottom, it needs to be plugged up.  I think it may have some kind of plug in there already.  That vac leak would be massive if it was fully popen.

[Choking Hazard]

FYI for folks pondering the vac hose setup-
I settled on this:
From ICV to port at bottom of rubber bellows.
From valve cover to large intake under the throttle body.
The port on the side of the TB is connected to the fuel tank vapor canistor.
From FPR on fuel rail to small fitting on bottom left side of TB
It seems to be OK like this.

[johnwoo]

hey guys putting my stuff back together any1 tell me where this vac hose goes that comes off of the fpr?



i can't remember where exactly it goes

[BlueBMW]

Should be a fitting on the side of the throttle body that it connects to.

[johnwoo]

Should be a fitting on the side of the throttle body that it connects to.

have a diagram or pic?

[///m42 sport]

this one I believe.  From my writeup a while back haha

if you need other references
http://m42club.com/forums/showthread.php?t=6334

[Chalino]

That's the fpr line and it hooks up to the doenward-pointing nipple on the image above. Make sure you hook it up on the TB side before you bolt it up to the manifold; otherwise it will be a bitch to get to.

[McCall]

Ok, quick question about the ICV.  Which way should the arrow (--->) indicating flow through the ICV go?  From the manifold to the rubber intake boot or from the intake boot to the manifold?  In looking at the pictures posted some have it reversed going one way and some have it the other.

Thanks!

[johnwoo]

ok guys i just this this mod...tried starting the car and the car goes to 1500 rpm then almost dies then comes back up to 1500 rpm.  did i do this mod right?  what is going on?  i also did the COP kit but im positive i have the order correct on the sparkplugs.  i needs whatever help i can get as i am so frustrated with messing with it.  

i have a hose coming form the vc to the throttle body nipple. and i have a hose from the icv to the intake boot.  did i do that correctly?

[johnwoo]

Ok, quick question about the ICV.  Which way should the arrow (--->) indicating flow through the ICV go?  From the manifold to the rubber intake boot or from the intake boot to the manifold?  In looking at the pictures posted some have it reversed going one way and some have it the other.

Thanks!

on mine the arrow is pointing toward intake manifold.  hope that helps. best mod i have done to the car.

[McCall]

on mine the arrow is pointing toward intake manifold.  hope that helps. best mod i have done to the car.

Yes, thanks.  When I unplug it when it's in that orientation, it does make a difference in the idle so that must be the correct way.

[carguy101]

sub'd for to do list
looks like a great write up

[jscribble]

Just ordered my parts from pelican, as well as a new thermostat, aux fan resistor, and bmw oil cap (SACRILEGE: mine says vw) and I plan to paint my intake and valve cover while I have parts coming off. Thanks for the write up!

Edit: Holding off while I gather a few more parts, I'd like to swap out my fuel injectors while I'm in there, as well as paint intake and valve cover.

[jscribble]

Just did got it all done, had a nightmare time with the icv collapsing the hoses on me, and I am contemplating using metal tubing (conduit?) for the run to the icv from the intake boot. Anyone know of any reason I couldn't use electrical conduit? It is galvanized, will that cause any issues? The stiffest hose I could find still collapses significantly on me, although it's not completely closed, I would prefer it be completely unobstructed.

[tjts1]

Ask for 'reinforced' vacuum or oil line hose at the parts counter. See the red hose on mine.
http://img.photobucket.com/albums/v242/tjts2/BMW%20for%20sale/DSC04462.jpg?t=1277753321