***How-To Clean*** Your IACV a.k.a. Idle Air Control Valve
06-26-2007, 10:29 AM
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Re: ***How-To Clean*** Your IACV a.k.a. Idle Air Control Valve (wildoutwhitegsr)
you are the man, does this help my car that when i start my engine on when its cold, my RPM is fluctuated from 2500 to 2000 rpm?
06-28-2007, 10:04 PM
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Re: ***How-To Clean*** Your IACV a.k.a. Idle Air Control Valve (howard-zhang)
hey guys--i just solved the problem w/ my 94 GS-R dropping idle to 500rpms/dimming headlights and eventually dying on me while at idle at a stop after my vehicle has been warmed up to operating temps. i solved this problem by cleaning out these three components: IACV, FITV, and throttle body butterfly. the problem now is that i have coolant leaking from my IACV...i believe its leaking from the bottom square plate w/ 2 bolts that covers a thin gasket in a narrow groove. i tried purchasing this gasket at the dealer but, they say that's not a serviceable part so they don't selll it! i wanted to see if anyone has a similar problem and what did you do to solve your coolant leak? i was thinking i could make my own gasket w/ some permatex gasket maker or does anybody know if i can order this gasket online or if there is an aftermarket gasket available? any help or information would be much appreciated...
howard: i would check and clean out your FITV if your experiencing idle flucuations as this part controls your idle speed after startup and when your englne is cold then switches over to the IACV after your car has reached operating temps. to control idle when at a stop.
thank you.
howard: i would check and clean out your FITV if your experiencing idle flucuations as this part controls your idle speed after startup and when your englne is cold then switches over to the IACV after your car has reached operating temps. to control idle when at a stop.
thank you.
06-28-2007, 11:29 PM
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Re: ***How-To Clean*** Your IACV a.k.a. Idle Air Control Valve (wildoutwhitegsr)
thanks for the write up. im having idle problems. the obd reader scanner indicated a CEL for p0505 " IACV malfunctioning
06-29-2007, 06:50 PM
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Re: ***How-To Clean*** Your IACV a.k.a. Idle Air Control Valve (wildoutwhitegsr)
i have an 89 integra. same problem of pulsating idle when warm - 750 - 1500 rpm. went to clean the iacv, but doesn't have one. has an electronic control valve (ecv) that has the coolant hoses attached to. took it off, but can't open it up to clean anything. any suggestions - any other things to check? what happens if i unplug it?
06-30-2007, 09:35 PM
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Re: ***How-To Clean*** Your IACV a.k.a. Idle Air Control Valve (lenkwo)
Just clean out the openings that mate to the intake manifold with carb cleaner.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TRYLSTEG808 »</TD></TR><TR><TD CLASS="quote">thanks for the write up. im having idle problems. the obd reader scanner indicated a CEL for p0505 " IACV malfunctioning</TD></TR></TABLE>
I think you need a new IACV if cleaning it does not change anything.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DuDeJo »</TD></TR><TR><TD CLASS="quote">Nice write up, but uh i cant even take out the screws they're rly rusty and the 12mm socket just rounds up the screw and it slides around ... lol
Dunno what to do now</TD></TR></TABLE>
Use channel locks or vise grip pliers to loosen the bolt and remove them by hand. Then buy yourself some new bolts.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TRYLSTEG808 »</TD></TR><TR><TD CLASS="quote">thanks for the write up. im having idle problems. the obd reader scanner indicated a CEL for p0505 " IACV malfunctioning</TD></TR></TABLE>
I think you need a new IACV if cleaning it does not change anything.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DuDeJo »</TD></TR><TR><TD CLASS="quote">Nice write up, but uh i cant even take out the screws they're rly rusty and the 12mm socket just rounds up the screw and it slides around ... lol
Dunno what to do now</TD></TR></TABLE>
Use channel locks or vise grip pliers to loosen the bolt and remove them by hand. Then buy yourself some new bolts.
07-16-2007, 10:47 PM
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Re: ***How-To Clean*** Your IACV a.k.a. Idle Air Control Valve (EnjoyTheRideDC2)
replaced the iacv with a junkyard one and same problem. turned down the air? screw on the left side of the manifold - way down. idle smoothed out and looks back to normal. i think i had multiple problems and iacv could still have been one of them.
07-30-2007, 04:54 PM
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Re: ***How-To Clean*** Your IACV a.k.a. Idle Air Control Valve (wildoutwhitegsr)
i think i know were mine is but not sure i have 96 civic and its a dx lx ex iacv are shaped different. could anyone desribe were any how it looks on a civic dx thanks
08-06-2007, 06:12 PM
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Re: ***How-To Clean*** Your IACV a.k.a. Idle Air Control Valve (NorCal EM1)
Can anyone tell me if the IACV has a one way check valve so coolant only goes one way?
08-06-2007, 06:41 PM
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Re: ***How-To Clean*** Your IACV a.k.a. Idle Air Control Valve (MidwestAutoWorks)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MidwestAutoWorks »</TD></TR><TR><TD CLASS="quote">Can anyone tell me if the IACV has a one way check valve so coolant only goes one way?</TD></TR></TABLE>I dont think it does...are you trying to install the thing upside down? The harness clips into the IACV from the bottom. If you are talking about the coolant lines...I dont think its that important that you have the coolant lines in the right places, but the nipple closest to the throttle body has a coolant line that runs under the tb. The other line goes to the other nipple that runs to the back of the block.
08-17-2007, 06:43 PM
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Re: (98accord4sale)
Are there any springs on the Honda IAC valves? because I cleaned my an IACV from a ford probe and the spring went flying and the car never ran right after that... im considering doing this since my car idles at about 400 rpms...
08-21-2007, 06:57 PM
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Re: (98accord4sale)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 98accord4sale »</TD></TR><TR><TD CLASS="quote">Wow did this last weekend after 2.5 hrs this did solve my crazy idle problem and saved me a $350 bill!! THANX</TD></TR></TABLE>
No prob
No prob
08-21-2007, 07:36 PM
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Re: (wildoutwhitegsr)
I have a b20vtec swap....my car idles at 1500 when motor is cool but once it heats up idle goes down......car shakes then idle goes up again.....after i drive it for a lil bit coming to a stop and pressing on the clutch automatically shuts my car of because my idle is to low....cleaned my iacv and still does the same once the car is heated...any ideas why?
09-17-2007, 05:18 AM
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Re: (mouab18c1)
Hey,
Just recently I started noticing that when I put my car in neutral or just rev my car that the revs seem to drop a lot below idle. Goes down to 600 sometimes and takes a while to get back up to idle sometimes which is at 1000 rpm when at a stop. When im driving and put the car in neutral so its still rilling the revs seem to drop and stay around 700-800 rpms and not go back up to 1000 which is a normal idle untill I stop and still does go up pretty slowly.
Does this sound like the IAVC or the FITV?
Just recently I started noticing that when I put my car in neutral or just rev my car that the revs seem to drop a lot below idle. Goes down to 600 sometimes and takes a while to get back up to idle sometimes which is at 1000 rpm when at a stop. When im driving and put the car in neutral so its still rilling the revs seem to drop and stay around 700-800 rpms and not go back up to 1000 which is a normal idle untill I stop and still does go up pretty slowly.
Does this sound like the IAVC or the FITV?
10-20-2007, 09:11 PM
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where does that hose go the one in top of the IACV and right next to the throttle body...cuz my car is idle ling cuz os that hose....please help me....email me back with the answer at los_bellacos18@yahoo.com... i would appreciate..thank you
10-20-2007, 09:40 PM
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Re: ***How-To Clean*** Your IACV a.k.a. Idle Air Control Valve (Lewy. Dee Ayy)
i got a ls\VTEc is idle ling fast cuz of a hose and i don't knoe where it goes the hose is locate right in top of the IACV and right next to the throttle body... please help me..ill appreciated thank you
http://i38.photobucket.com/alb...3.jpg
http://i38.photobucket.com/alb...3.jpg
http://i38.photobucket.com/alb...3.jpg
http://i38.photobucket.com/alb...3.jpg
10-20-2007, 10:21 PM
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Re: ***How-To Clean*** Your IACV a.k.a. Idle Air Control Valve (4EvaLow)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 4EvaLow »</TD></TR><TR><TD CLASS="quote">i
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http://i38.photobucket.com/alb...3.jpg </TD></TR></TABLE>
Your links didn't work.
Note: IF you are going to clean out the IACV. You might as well replace the O2 sensor. That sensor has a lot to dowith a smoother running engine. Plus, this all works if you have a somewhat stock set up. If its altered, your going to want to get it tuned professionally unless you have the tools and know how to fix and adjust it right.
http://i38.photobucket.com/alb...3.jpg
http://i38.photobucket.com/alb...3.jpg </TD></TR></TABLE>
Your links didn't work.
Note: IF you are going to clean out the IACV. You might as well replace the O2 sensor. That sensor has a lot to dowith a smoother running engine. Plus, this all works if you have a somewhat stock set up. If its altered, your going to want to get it tuned professionally unless you have the tools and know how to fix and adjust it right.
10-25-2007, 04:56 PM
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Re: ***How-To Clean*** Your IACV a.k.a. Idle Air Control Valve (wildoutwhitegsr)
Hey guys, I cleaned out my IACV but my engine still has a idling problem! it revs from between 1000-2500 rpm when it is idling! could there be any other problems?