dohcteg

Hi guys. Recently my car started leaking coolant. I finally found out where it was leaking at.





It was covered by this vacuum cap .... its all messed up when i got it out.



Now my question is what is that thing supposed to connect to? Was it just an end that was cap with a rubber cap??

Thanks

R Benefits

Looks like somebody bypassed the FITV and didn't do it right.

dohcteg

What exactly is that? What is the "correct" way of bypassing it or fix it to stock or whatever? THanks

nello a.

if it is running fine, put another cap on it.
any idle issues?

sicones

it goes through the IACV on the back of the I/M and then through the throttle body, it helps warm the engine up in the winter. Whoever before you just bypassed it by putting a cap on the end which is not really the right way of doing it...

dohcteg

I do have a SLIGHT idle issues. Car stalls sometimes but nothing major. Can anyone show me where its supposed to connect to?

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sicones &raquo;</TD></TR><TR><TD CLASS="quote">it goes through the IACV on the back of the I/M and then through the throttle body, it helps warm the engine up in the winter. Whoever before you just bypassed it by putting a cap on the end which is not really the right way of doing it...</TD></TR></TABLE>

I only understand half of that statement. What is an IACV? Im looking at the I/M right now and there are a punch of tubes/hoses. Don't see where its plug into.

minime-civic

thats one of your main coolant ports for ur intake manifold. theres one on the thermostat housing that it connects to.

Blk00EJ8

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dohcteg &raquo;</TD></TR><TR><TD CLASS="quote">What is an IACV?</TD></TR></TABLE>

Idle air control valve. It's on the back of your manifold and allows your ECU to modify your idle speed when the engine is cold.

It may or may not be the IACV that was bypassed, but I'm inclined to suggest that it could also be the line to the throttle body that was bypassed. This is also for warming the TB when it's cold out so the butterfly doesn't bind. Not really necessary though.

However, idle problems point me back to IACV.

instrument

yeah i'd like to know the "proper" way as well
seems like no one is giving this proper info.

dohcteg

I just took a look ...and cant seem to find any "unconnected" hose on the back of my I/M .. everything seems.... t o be connect maybe i missed? maybe too dark?

dohcteg

Any suggestions?

sanegb16

iTrader: (2)

its behind the intake manifold by the throttle body
it should have 2 "little weird things"on the back it connects to you just need a hose

92ehatch

i have an extra coolant line on my for some reason as well. i just took a coolant hose that would fit over the inlet there and then found a spare bolt with a smooth side to it, cut the threaded part off, made sure it fit tight as hell in the hose, and put a clamp on it.

works great

dohcteg

Well, after careful inspection 2day... I still couldnt figure out where to connect it to. So i just went ahead and bought a new vacuum cap from pepboys and just plugged up so it doesnt leak. Im trying to figure like a picture or a diagram or something to see exactly where it goes. Word descriptions are kind of tought.

yoffer

Found out how to bypass the coolant going to the IACV. In theory you gain HP by doing it.


https://honda-tech.com/zerothread?id=1423187

watsvtecEK

that coolant nipple can also can go to the fitv (fast idle thermo valve). but newer throttle bodies don't have them and your manifold and throttle body might not be the same year.

yoffer

In the diagram i have posted above^^ the coolant is suppose to come from the block of your engine, into the FITV, into the IACV and then back into the engine.

marshun

clean iacv. loop that line. done. costs just about nothing

dohcteg

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by yoffer &raquo;</TD></TR><TR><TD CLASS="quote">Found out how to bypass the coolant going to the IACV. In theory you gain HP by doing it.


https://honda-tech.com/zerothread?id=1423187
</TD></TR></TABLE>


THANKS yoffer! Exactly what i was looking for. THANKS ALOT

dohcteg

Excuse me for my lack of knowledge/experience but Im not sure what the FITV looks like. Is this the FITV?



I can see the valve been blocked off bypass (pink arrow)

According to this thread.. https://honda-tech.com/zero...age=1 im not sure which is 1 , 4 , 5 ,6.

And while I was looking back there, I found this lose plug.......




Well actually not one lose plug but 2 lose plugs


Anyone knows what it plugs to?

^ Sorrie if it was a lil off topic there but i didn't want to make another thread. Some on here surely will know the answer thanks!

marshun

first pic is the tps.
2nd that looks like a vac line. i dont think you'll be needing to uncap that.
3rd 4th is fine. dont mess with it. its a jumper plug
5th is a o2 sensor connector. you should have 2 02 sensors. primary and a 2ndary

dohcteg

OOo Thanks. I cant seem to find where it plugs into. Illl lift the car up 2morow. Is it a must for those 2 sensors to be plugged in?

yoffer

Well if not your car will run like s*** if both o2 sensors arnt plugged in. Its not hard to find the o2 sensors, just jack the car up and get under, there should be one right before the cat converter on the downpipe, and there should be another right in the middle of the cat converter.

dohcteg

Ok, I thought that i've fixed the leaking problem... but guess wut... its still leaking. It leaks less than before tho. Anyways, I was thinking I going to reconnect the hoses. Except I dont know where it connects to. Anyone has an actually picture that they can illustrate to me? THANKS ALOT.
I dont want to bypass it anymore. My idle is bouncy, and im hoping this will fix the problem. (also the idle is only bouncy when its hot, thats what i've notice. Sometimes i would actually stall at a stop light..........)

dohcteg

Bump. Anyone?