H22 Prelude W/ surging idle fixed

After 6 months of putting up with this I finally came across a helpful tip to my problem. The solution is explained and I tried my best to show before and after.

[@Joethetoolguy]

So where do I place the twin turbos in there? Does that fix it?

[@PFab]

Twin turbos..... nitrous, supercharger, shit.... I need an LS motor.

[@nathanyoung9123]

What’s the name of this part?

[@PFab]

@@nathanyoung9123 Fast Idle Air Control Valve

[@dannyr3346]

Still a great how to for people who may not have the confidence to tackle something like this themselves!!

[@PFab]

I figured it would help other's. And even if it's just one I did my job. None of that fluffy subscribe BS and no commercials, just solid info to help others.

[@danielgreen4735]

Just got a 2000 base 5 speed. Had the same problem. Cleaned out the iacv on the top of the intake an the bottom. Fixed it perfectly now idling at 800 thank you so much saved me 200!!

[@PFab]

That's great news. Glad I could help.

[@kliving3778]

My guy I thank you 1000 times for making this video I buy two idle air valves and they never fix the problem I skip this video like 10 times but I decided to give it a try and it work for me perfectly my car use idle up and down from 1000 rpm to 3rpm and now she’s drop to 900 rpm Big thanks And people give it trust me it is worth it And it’s really simple to do 👍🏻🔧🔰 thanks …..

[@PFab]

Thank you so much for the kind words and I'm glad people like you watched and actually got results. Thank you and hope you enjoy your ride.

[@wentzyy7450]

Thanks man I’ve been trying to fix this problem for idk how long now, she’s a whole different car now

[@PFab]

It's crazy because we overlook the simple things.

[@misosowwy890]

Works! I Been chasing a vacuum leak that I didn’t even have lmao did what u did and was relived it worked, for anyone about to try this if the bolts on ur fast idle are to tight to the point ur going to strip them like mine were just pull the throttle body off and the fast idle will be on with it made it easier for me plus u get to clean deep inside ur intake manifold. Great video!

[@PFab]

Thank you for the kind words and glad you were able to solve your issues. 💪

[@chikechovis2499]

Dude thanks a lot this was so easy and it worked my valve was so jammed up with coolant it couldn't even pass through, the car was sitting in a guys yard for a while so I probably should've done this right away but you live and you learn I guess.

[@PFab]

I appreciate the comments. Glad it worked out for you.

[@onedaddy32]

Same problem...definitely going to give this a try

[@zekkymm]

It worked it fixed the surging idle on a base model 2000 Honda Prelude

[@PFab]

Glad you were able to resolve that annoying issue. Thank you for watching. 👍 👌

[@leoramirez6158]

That factory color is awesome 👍 cool you kept it

[@PFab]

I really like the green. It's not a common color.

[@miriamvivo4279]

Eucyplytus green

[@matthewallen7321]

Thank you! Worked like a charm!

[@PFab]

That's great news. Thank you for letting people know.

[@jfGarage4k]

Awesome good job champ. Make sure to bleed the air out on your cooling system

[@PFab]

Thanks for the help. I did bleed the system. Things are looking much better.

[@chiefstabahoe]

Recently picked up a 2000 type sh and i was having the exact same issue. FITV was the culprit for mines as well! I found it easier to just unbolt the throttle body and remove it then take off the fitv valve.

[@PFab]

Nice. Glad you were able to fix yours.

[@Allen-nh8rn]

Thanks for the video. I will have to give this a try.

[@PFab]

Hopefully, it works out for you.

[@peterbryant3584]

Great explanation great video im going thru the same thing but i dint clean the bottom part thank u

[@PFab]

Glad you saw this video. Hopefully it helps.

[@nga.quinton]

Bouta try this soon, same issue 🫡😓

[@PFab]

@@nga.quinton Please update if possible. Good luck.

[@lazrlord8687]

Thanks man, you helped my bouncing idle

[@PFab]

Noice. Glad I could help.

[@philoffhistree6700]

its usually just the first valve you mentioned in this video the one you said you thought you took off another car, the pipe that go to it and the until it self clogs if you have ever used any additive in your water and usually just cleaning that and the pipes works never had to do the other vales you just did

[@philoffhistree6700]

flush your radiator system out now as well as that was pretty clogged up someone must have added a leak seal additive in the past maybe for a broke radiator thats has been replaced but anyway to anyone else reading this never add anything other than coolant to your prelude or you will get the same issues at some point

[@slurr4588]

Thank you seriously this worked for me ima sleep good today 😂thanks bro

[@PFab]

Thank you for the feedback. Glad I was able to help.

[@davidcorrea3225]

awesome! thx for the vid 👊

[@ToolswithSoAlz]

Nicely done

[@PFab]

Haha... nice of you to join my channel Robert. And thank you.

[@ToolswithSoAlz]

@@PFab no problem. Glad to be here, lag in hand. However, I get the feeling the lag should be in the mail.

[@PFab]

@@ToolswithSoAlz and how do we fix that?

[@fadingthought7622]

Thanks this actually work I had that problem with my h22a eg hatch

[@PFab]

Nice. Thank you for the comment.

[@ianbotts3702]

I have a vacuum leak I couldn't find. The idol was bouncing up and down, it was a rubber seal in between the brake master cylinder and the brake vacuum booster. When I press my brakes hard it idles fine, and when I take my foot off it bounces.

[@PFab]

Yup, any vacuum leak would create that sound as well. A good way to test was is to spray brake cleaner around all the areas where you could have air entering the intake system. If there's any leak the car will idle lower or die. You can pinpoint the area while spraying when the engine is running.

[@abdouallahuniverse5689]

That a coolant valve that pass the coolant from the engine to it and to the idle air control valve on a 1999 honda crv, i got the rubber hose that go to it broken down and i lost all my car coolant, i saw the coolant comming from that broken hose whille the engine on, till thenengine start going ovetheating, and that way i know that a freaking coolant control valve fronthe IACV.

[@dannyr3346]

My man took half the car apart for no reason 😂😂

[@PFab]

It really wasn't that bad and it did fix my issue. To this day this car runs like it should.... Burning oil and kickin' butt.

[@2ndc08G]

I'm buying a prelude soon it has the same problem just trying to figure it out before i do so I know what I'm doing. (Still watching 2mins in) sounds like a washing machine lol

[@PFab]

Good luck. Hopefully it works out for you.

[@2ndc08G]

@@PFab thanks man I've subscribed 👍👍

[@PFab]

@@2ndc08G thanks man.

[@jacobrivasjr]

omg thats what mine does !!!!

[@PFab]

So you gonna fix it now?

[@Jack-gl1tw]

Check your coolant there’s like a weird valve thing in the radiator that messes with the idle idk

[@PFab]

Bro did you watch the video at all? I fixed my issue and show how to do it.

[@giovannitorres4387]

My prelude does the same thing ima look into it once I get my car fixed I got rear ended today hit and run while it was parked 🤦🏻‍♂️

[@PFab]

Damn thats crazy. Hope you get it back together.

[@miriamvivo4279]

Fluid film all underneath

[@digz7184]

It the fast idle Thermal valve the Take the throttle body off is underneath the throttle body

[@PFab]

Did you watch this video at all? That's exactly what I showed.

[@danieldepot4090]

Had a feeling you're a Honda guy like me

[@PFab]

In general I'm a car guy. But I appreciate the comments and subscriptions from all you guys. So thank you.

[@jeremygonzalez9164]

Sounds like R2D2 screaming

[@antnay_beastz9361]

LMAO

[@oliviermontreuil3858]

It does thw same thing on mine but only when its warm

[@PFab]

Yeah that was the same issue I was trying to explain on mine. You should be able to fix the problem with these steps.

[@timphalen9182]

Your coolant needed burping… mine did the same thing til I burped the air out

[@PFab]

No, I tried that like 20 times. Like I said in the video, it wasn't air. This was my fix. It worked.

[@timphalen9182]

@@PFabright sorry! Can I get to the hose from my engine to my heater core if I just take off the manifold?

[@PFab]

@timphalen9182 yes, it's just underneath that manifold

[@matri5h9]

👀😂😂good work

[@PFab]

Thank you.

[@fivekay2678]

I just got my prelude and it does the same thing but after driving it for about 5 minutes it stops. Any tips?

[@PFab]

I would suggest looking at the idle air valve on the side of the throttle body between the fuel rail. It's visible briefly in the beginning of my video. I'll pull a time stamp for you.

[@PFab]

5:45

[@PFab]

There are 2 independent air valves here. Each one has a different purpose.

[@mikemunoz6716]

Do you still own the rover? Would like to get some help on the rear tire carrier. Thanks

[@PFab]

Yes I do. It's parked on the side yard but it runs and drives fine.

[@noah_s906]

Hey bro i am chasing this sound that is being made at 1700ish rpm, you can hear it very well at 3:35 in the video. Did you ever find what it was???

[@PFab]

I'll check it out and get back. Got you're email.

[@noah_s906]

@@PFab !!! Thank you for such a fast reply haha

[@PFab]

@@noah_s906 I just checked. It does sound like a loose part. And from I remember, my alternator tensioning bolt was sheared off at some point after this. Hope that helps. Good luck and report back.

[@christopherwarner1355]

I used this same fix but over time it would die on me when I stopped at a light or stop sign.

[@PFab]

Did you figure out your issue?

[@christopherwarner1355]

@@PFab not quite yet but I’ve narrowed it down to possibly a bad distributor cap

[@PFab]

@@christopherwarner1355 check your wires and coil. Bad spark in any of those will cause issues.

[@Bildozer509]

Idle air control valve?

[@PFab]

There's fast idle air control valve and idle air control valve.

[@fox_widit]

Yo did you leave the battery plugged in?

[@PFab]

Normally yes. Only thing I did at the end was pull the fuse box power to reset the ECM codes.

[@fox_widit]

Just finished cleaning mine and then my battery dies

[@PFab]

Story of my life. That's sucks bro. Happened to my other car. This cold weather kills batteries faster.

[@jameynichols9573]

Did the iac valve and fixed ours for a cpl weeks then the surge came back. I’m going to try the fast idle valve, my only question is do you screw the valve all the way until it stops or do you back off at all? Thanks.

[@PFab]

All the way in. Either replace the O ring or use blue or red lock tight to secure it. Just tighten it up. There is no need to over tighten it. Good luck

[@DrBOOM-rs5yw]

Did you bottom out the little plastic piece on the inside or did you tighten it a bit?

[@PFab]

I bottomed it out. You want as little play on the spring as possible.

[@DrBOOM-rs5yw]

@@PFab got it 👍🏻 and can the idle screw valve help with only high idle not idle surge

[@vincentsauseda8622]

Did you get it fixed im in central valley aswell same problem 1991 accord h22a1 swap

[@PFab]

Send me an email if you need a hand

[@kellyforsyth5566]

Mine does same thing . now wont start

[@PFab]

What did you touch?

[@soheilhejazishoar3623]

Just today, fire my battery light came on with the brake light, I went for a drive and when I reved it the lights went away. At night I went to go for another drive, the same lights came on and the car for the first time ever started doing that

[@soheilhejazishoar3623]

Can I still drive it for now ?

[@PFab]

@@soheilhejazishoar3623 yes, you can drive it for a long time this way. But it will be annoying and possibly embarrassing. It really depends how long you want to deal with it. And you will have performance issues. Nothing serious.

[@soheilhejazishoar3623]

@@PFab damn, today I came to ride the car, rode it, came back home, turned it off tried starting it again, it didn’t start, the battery light has been on but I do get power for everything else except it doesn’t start. It’s weird how this issue and jumping idle came together

[@soheilhejazishoar3623]

I don’t know toomuch about cars but one thing I could think of is the alternator is done

[@PFab]

@@soheilhejazishoar3623 do you hear a click from the starter?

[@yong7801]

Any updates on either prelude?

[@PFab]

My Prelude in the garage is still sitting in the garage untouched. But the green one is running fine. My problems are much better now.

[@mprism7985]

my car is doing the exact same thing

[@PFab]

Let me know if you get it fixed. That was so stressful until I fixed it.

[@syloluon4969]

Do you tighten the FIC it all the way down?

[@PFab]

Yes. Then lock it in with thread locker to keep it down

[@gagesgarage8581]

Easiest way to take it off is to take the whole throttle body off

[@PFab]

It wasn't too complicated.

[@miriamvivo4279]

Tried both, this way much easier

[@JohnSmith-vq1kf]

My Honda Civic 89 erratic idle ONLY when it hits operating temperature....so, strange....then, it goes away....I have cleaned every part known to mankind...no way to fix this on my car...my assumption....I prefer not to change parts...no codes...oh well..life goes on...oh sometime when I CLEAN external components, it goes away....but always comes back....lol...also, once I loosed the bolt that holds the circle piece the throttle cable wraps around...and that worked for a few weeks, than it went back to same problem...

[@PFab]

That's interesting. Does it happen when it's hot only?

[@JohnSmith-vq1kf]

@@PFab only when it "hits operating temperature"...when hot, nothing happens....

[@JohnSmith-vq1kf]

@@PFab let's say operating temperature is 190 F, for example only, when it hits 190 F it will idle erratically...for about 6-8 seconds...then it goes away....

[@PFab]

@@JohnSmith-vq1kf have you opened up the sensor I covered in this video?

[@JohnSmith-vq1kf]

@@PFab nope....don't think that is the situation for my car...

[@PFab]

Here's a link for the idle air control valve kzbin.info/www/bejne/gnTJg4VjbrWVaqM

[@tadeovaldez8498]

69 like, nice.

[@kellyforsyth5566]

Help lol please

[@PFab]

What's wrong?

[@LLAMA-LLAMA]

I’ve never seen such surging, its usually light from a dirty throttle body. Did you get your engine swapped? Kudos in the one handed repair while maintaining camera quality.

[@PFab]

Factory motor. Just needed some tlc.

[@LLAMA-LLAMA]

@@PFab sorry, thought you said you bought that car for the motor. Those Preludes have quite a fan base.

[@slurr4588]

Mines is doing the same just fixed tho this helped me out

[@yong7801]

Any updates on either prelude?

[@tadeovaldez8498]

I had that exact issue on my base 97, just did it actually in the parking lot. Just want to say that my coolant isn’t topped off, I burn coolant if it’s topped off because of a small head gasket leak but I don’t ever overheat, car used to do this only when she was cold but then it became more frequent and didn’t go away, cleaned the other control valve but it wasn’t that dirty and it didn’t fix my issue. When I took the high air control valve the gold nipple wasn’t flush with the plastic ring. Tighten it down threw it back on and car sounds good and idles perfectly

[@PFab]

@@tadeovaldez8498 yeah, idle issues suck. Glad you got that fixed. My green Prelude was doing that for over 6 months before I gave up. But just when I was going to just deal with it I tried looking up many KZbin videos and found one that actually helped guide me to this video. So hopefully you guys don't have to look for days to find your problems. I tried to explain in as much detail and do what you would need to do. Step by step. I had no idea there was too idle air control valves. This one in my video is called the fast idle air control valve. Which caused what I tried to explain in the very beginning of this video. But after attempting to do it, because I was super excited that it actually worked, I tried to replay what my issues was by going backwards from the steps I took to fix it and reverse everything for the sake of putting a great video together. Well not that great. But helpful. 🥴