What is this, random port with no hose, b16 ED

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Old Mar 21, 2007 | 04:53 PM
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Default What is this, random port with no hose, b16 ED

Ok I was asking about this with some people earlier and everyone was saying it needs to go to my PCV, but I think the were mistaken for the wrong part. The one that says "TO PCV" goes to PCV valve, the other one (in blue) is open, where does it go? Has vacuum when car is running, if plugged will stall the car. the hose that comes down and goes to the FPR is right now hooked to the bottom of the purge valve (not sure if thats the right term for it, its next to the map sensor on the firewall). that very well could be wrong as well.



someones gotta know what the heck is going on, all of the vacuum diagrams I've found dont show any hoses going to or coming from this spot. what am I doing wrong here?

just for reference its an obd0 b16 into an 89 hatch
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Old Mar 21, 2007 | 05:05 PM
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Default Re: What is this, random port with no hose, b16 ED (white94)

DOooooouuude, that port goes to your FPR, the hose going to your FPR right now should probably be going to your charcoal canister
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Old Mar 21, 2007 | 05:09 PM
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Default Re: What is this, random port with no hose, b16 ED (white94)

the circled port should go to the fpr and the one to the fpr "should" go to the tb. or you could just throw a tee fitting in there, run a line to the circled port, turn the idle up so it doesnt stall and call it a day. problem solved
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Old Mar 21, 2007 | 05:20 PM
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Default Re: What is this, random port with no hose, b16 ED (boosted timebomb)

ok, thanks for the comments guys, so the FPR goes to my empty port. But then where does the hose coming from the bottom of the purge go to? in this diagram its how its hooked up now....i KNOW its not right but i gotta start somewhere, in this pic it shows the FPR NOT going to that port, and instead going to a port in the back of the IM, then T'd to the bottom of the purge valve...thast why im all F-d up here....




heres some more pics with my other hoses and all. if someone could PLEASE!!!!! tell me at least whats right and wrong, I'll be so grateful.





by can I mean charcoal canister. If someone has a pic handy of their engine bay, showing these hoses, post it up
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Old Mar 21, 2007 | 05:38 PM
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Default Re: What is this, random port with no hose, b16 ED (white94)

ok blue circled port def. goes to the fpr. now in the diagram forget about the red line that i am assuming is you vacuum line, get rid of any tees, and dont leave anything open like it says and thats basically it. on my motor it comes off the purge valve and goes straight to the back of the IM right above the IAC valve. i hope all my jibber jabber made sense to you. good luck
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Old Mar 21, 2007 | 07:31 PM
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Default Re: What is this, random port with no hose, b16 ED (white94)

im gonna edit this and maybe someone will chime in here. sure this isnt rocket science, but at the same time i havent seen a SINGLE verifiable answer. so...

^^ were saying the FRP goes to the empty port on my manifold.

...isnt the entire reason for the charcoal canister to contain fuel vapors from entering into the IM all the time?

on some B16's ive seen while digging into archives, back to 2002 (apparently when people actually were willing to lend a hand at this ****) this port DOESNT exist. instead there is a metal bracket that is 2 lines together, and they go....from FPR and the port on the BACK of the right side of the IM, to the purge valve. on some models im guessing thats the cut off valve,(on CRX?) which stops fuel vapors from entering the IM when the throttle is open?

so...who knows. ill figure it out and update...



Modified by white94 at 9:13 PM 3/21/2007
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Old Mar 22, 2007 | 03:49 PM
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Default Re: What is this, random port with no hose, b16 ED (white94)

Well here is a pic of my CRX w/ a B16 in it and you can see where my FPR hose goes. the purge goes to the charcoal can. and the map goes to the throttle body as you have it. On mine the hose from the purge is just really short and plugged at the end, you should be ok doing the same




not the best angle but you can still see.
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Old Mar 23, 2007 | 07:19 PM
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Default Re: What is this, random port with no hose, b16 ED (VtecSyndrome)

you just wanted to show off your clean *** car

But really, I appreciate the input and the pics. Thats how mine is hooked up now as well, the bottom of the purge is just plugged.

But unfortunately, its still surging on idle, sometimes almost to the point of dying. when i unhook the FPR from the intake mani port, it idles almost normally. If I then put my finger over the port in the intake mani (*with FPR hose taken OFF) the engine will idle down and stall if I leave it on long enough.

Possible my FPR is the cause? maybe something clogged thats 'choking' it, honestly I have no idea.


on a side note, what radiator is that? which make and for which application? looks nice and I'm about due for a new one


Modified by white94 at 5:52 PM 3/24/2007
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Old Mar 26, 2007 | 06:51 AM
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Default Re: What is this, random port with no hose, b16 ED (white94)

Good luck on the stalling issue, the radiator is actually just an autozone unit for the DA integra. I had to replace the rad in my GSR 2 months before it got totalled so in the CRX it went!
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Old Mar 26, 2007 | 09:42 AM
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Default Re: What is this, random port with no hose, b16 ED (VtecSyndrome)

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Old Mar 26, 2007 | 10:00 AM
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Default Re: What is this, random port with no hose, b16 ED (b16a1eg6)

I forgot to get you pics

I'll see if i can tonight or atleast draw you up what I have...
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Old Mar 28, 2007 | 04:47 AM
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Default Re: What is this, random port with no hose, b16 ED (Loserkidwac)

I believe I have the vacuum all hooked up right, thanks 'kid' I'd still be interested to take a look though if you get around to getting a pic. The only one I dont have hooked up is the bottom of the purge valve, all the rest are in the right place now. It runs good except surges at idle and if I hold throttle at a constant RPM while driving.
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