I did find some helpful info searching but i would like some more please


car- 2000 honda civic ex 5spd

Ok here is my story my car threw a code a couple days ago, so i reset the ecu to see if it would come on again. A day and a half later it did, so i pulled the code and it was CODE 14, which is the iacv. The car's idle will surge from 1k to 1.5k.

I need help


Should i replace it?
Should i clean it and see if it fixes itself?
Also will it hurt the car if I still drive it in it's current condition?

 

Did this happen all of a sudden?

Is the car totally stock?

What was the latest mod/maintenance that you performed?

 

it just happened all of a sudden

i installed my intake the day befor i threw the code

but i didn't touch the iacv

 

bump

i removed the iacv and cleaned it with brake parts cleaner and it still is idling like poop


could it be the wiring

 

here is a picture of the car i am trying to sell


BUMP- a picture will draw more attention

 

what is iavc i got the same prob!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by H22A EG6 &raquo;</TD></TR><TR><TD CLASS="quote">what is iavc i got the same prob!</TD></TR></TABLE>

idle air control valve...and with the h22 u got, its located on the frontside of the i/m

 

what should i do guys?


pick one up use maybe and go from there

 

throw on the stock air box to see if it goes away.

Have you washed your engine bay recently?
btw nice hatch

 

so i cleaned my iacv with no results

do i have to bleed the coolant system since a little came out of the hoses?

 

try lowering your idle speed just a tad bit. Sounds crazy but that worked for me.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by O.G triple O.G &raquo;</TD></TR><TR><TD CLASS="quote">

idle air control valve...and with the h22 u got, its located on the frontside of the i/m</TD></TR></TABLE>
not for me for my bros CX it is stock but got intake

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ek9mugen &raquo;</TD></TR><TR><TD CLASS="quote">so i cleaned my iacv with no results

do i have to bleed the coolant system since a little came out of the hoses?</TD></TR></TABLE>

Reset ECU?????


Modified by TeStUdO at 9:51 PM 12/1/2003

 

emerika helped me out with mine...

pull off the intake and inside the TB there is a vacum hole. plug that hole to see if it idles the same. if does than its not your iacv its a vacum. also unplug your iacv and see if the idle returns to normal, but if you cleaned your iacv it could be vacum or you just might have a faulty iacv.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jumpmann23 &raquo;</TD></TR><TR><TD CLASS="quote">emerika helped me out with mine...

pull off the intake and inside the TB there is a vacum hole. plug that hole to see if it idles the same. if does than its not your iacv its a vacum. also unplug your iacv and see if the idle returns to normal, but if you cleaned your iacv it could be vacum or you just might have a faulty iacv.</TD></TR></TABLE>

Try hooking the IACV directly up to the battery with the car not running. If it clicks it works...............If not you need a new one.

 

i cleaned it and reset the ecu


when i unplug the iacv it disappears , my iacv has a slight crack on the black plastic but it doesn't seem to leak through.

 

bump

i just sent some hondatech guy $40 for a slightly used iacv with 25k on it. should i clean this one out too before installing it?

it says in my ghetto *** haynes manual to replace the o-ring when reinstalling it? do yall do this?


bump

 

another question

my iacv is the one on the very right




when i clean it do i clean out the screens and THE INSIDE OF THE BLACK PIECE?

 

bump for this, need help too

 

bump
i need answers to the questions i have about cleaning the iacv and replacing the o-ring

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ek9mugen &raquo;</TD></TR><TR><TD CLASS="quote">bump

i just sent some hondatech guy $40 for a slightly used iacv with 25k on it. should i clean this one out too before installing it?

it says in my ghetto *** haynes manual to replace the o-ring when reinstalling it? do yall do this?bump</TD></TR></TABLE>


Clean it before installing it. Also you dont need to replace the o ring if it is not cracked or torn. If the black part was cracked on your other one that could be your problem. Install the new one and let us know the results.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Civiclx &raquo;</TD></TR><TR><TD CLASS="quote">bump for this, need help too</TD></TR></TABLE>

i got the same damn problem...

 

I have the same problem, but I also have a helms. code 14 doesn't necessarily mean that your IACV is bad. You have to troubleshoot to find the real culprit. According to the helms flow chart the fact that your idle is above 550rpm says that it probably *isn't* the iacv. You most likely have one of the following problems :

1) tps is bad
2) vacuum leak
3) bad idle

To troubleshoot, do the following:

1) remove intake hose going to throttle body. There is a hole inside of the throttle body that feeds air to the iacv. place your finger over it. If the engine dies or significantly drops in rpms then you do not have a vacuum leak and you need to adjust your idle. If it doesn't change then you have a vacuum leak and need to find it.

before adjusting the idle, check your plugs, air filter, etc.

 

are you sure there is a hole in the throttle body on a 00ex

i removed my intake and i didn't see no hole.

 

Yep, there is a hole. I have one on my 98ex, have the same hole on a gsr tb that I have lying here. If you are looking directly into the tb, the hole should be on the upper left side for a 5-spd.