needs to be replaced, but there are a couple more nipples and a large line coming off the back of it, that i'm not sure where it goes to. If anyone has any diagrams, or pictures, that'd be great.

 

goin out on a limb, as i havent done one but arent they for the idle air control valve? or eacv what ever the hell it is called? i know on some manis they take nipples instead of being a direct bolt on.

 

Here's a pic: What i'm wondering, is the stainless braided line coming off of the intake manifold. I purchased it used, so It already came with this line attached. Where might it go?



I do have the original nipple coming off of the head, above the coolant tube, would this be where it needs to go, since I'm no longer running an EVAP can?

 

You can always use vacuum caps to block any unused vacuum sources on your intake manifold. The important thing is that you get all your OEM lines routed. Beyond that, the extra bungs and nipples are probably for PCV recirculatory stuff - maybe catch can vapors - and additional vacuum ports for boost accessories

 

Ok, so after the rebuild on my motor, we eliminated the pcv box, and put a catch can. Question is-- what to do with this nipple above the coolant tube:



Is that where the long stainless line goes to from the intake manifold?

I'm running two nipples from the back of the block to the catch can, but this is the one i'm not too sure what to do with?

 

i just blocked it off, i am pretty sure thats what you should do, when i bought my catch can it came with a hose with a block off plate and i assumed that nipple is what it was for, and i am also running the two nipples on the back of the block and a freeze plug where the black box went

 

Ok, awesome-- so what should I do with this little guy?

 

You know that line is pretty big so I would have to say that the previous owner of that manifold might have routed it to the stock PVC canister as a vacuum source.

But now that you have it, you don't need that fitting/hose anymore so go to Home Depot to get yourself a plug for it and your done.

 

Next question:

Since the new Intake manifold doesn't have a port for the FITV, is the little Elbow coming off of the Therm. housing a good spot to put it?

Where does this little guy go to?

 

i would leave it open its a coolant line right?? for the throttle body?? when i put my hondata intake mani gasket on it said to leave all coolant passages open as they warm incoming air

 

what I mean, is the coolant line coming out of this supposed to get routed to? I did a search and couldn't find anything, except that it might go to the elbow coming out by the upper rad hose.

 

im thinking that braided hose goes to your catch can I.E. your recirculating pcv system

if running a catch can then hook up that line,,,, if running a breather ( catch can with a filter on top ) plug the line ( i believe is the difference )

the little port on the back of the engine.. plug it... your running a "catch can" and have two big *** ports next to it.

 

definitly dont put it there,.... you dont want coolant in your intake manifold.....

go get a 1/4npt plug and plug it, or you can use that hose to go to a vacum manifold

 

i think you can take that whole fast idle assembly off and make a block off plate....are you from c-bus by chance???

 

Yeah, i'm from cbus.

I have a block off plate already made, just didn't feel like transfering it to the new throttle body. If i were to put the plate there, where could the other line from the IACV go to (I see that the line goes to the port above the FITV)?

 

i think you could just delete the coolant line all together im not sure why they run the coolant through the Idle air control valve but the FIV uses the coolant for temps to know idle speed i would try not using the coolant line since it comes off the intake originally

that fitting that you pictured is hard to tell if it is the return fitting for the coolant from the IAC or if it is the little pipe that goes into the crankcase/block

 

dude i just have those coolant nipples open on both nipples on both the fiv and iac and bypass the coolant hose from the thermo housing to the tube from the water pump