Honda Crv Idle Surging Fix P0507 High Idle IAC Valve

This 2004 Honda Crv 2.4 Vtec had a p0507 code and no vacuum leaks.
Ive seen many honda IAC (idle air control) valves get corroded and stuck, causing a idle surge when in park or neutral, where the engine will rev up and down on its own.
If you suspect a IAC Valve issue, this video will show you how to remove it and clean it out/or replace if need be.
Your AICV might not be bad, it might just be stuck... Hope this video helps! Thanks for watching FixItPhillip! Please be sure to Subscribe!
CODE P0507 : Idle Air Control System Higher Than Expected
This Procedure applies for 2002-2004 honda crv 2.4L, but may also be helpful info for other Hondas/Vehicles

[@SwamiMaster]

very good info it saved me money thank you so much

[@FixItPhillip]

You're welcome!

[@renegade9758]

​@@FixItPhilliphello me I have the same problem but if I leave the plugger scanner without erasing the codes just the scanner as soon as it is connected the check engine light disappears

[@johnlehane4939]

​@@renegade97580

[@tylerchassie7273]

AFTER THE PROCEDURE: You will have a hunting idle problem (Consistently reving up and down in a cyclical pattern) because you let air into the coolant line right next to the IACV. Idle relearn will not fix this. Open the radiator cap, when the car is off and cold. Squeeze the radiator tube a bunch of times to burp any air bubbles out. (Who cares if you spill some out of the radiator) After that, the hunting idle should be fixed, but you’ll still have minor idle issues. Thats when you do the idle relearn process. For a noob like myself, I feel like it would have been nice to add this into the tutorial.. took me a day to figure out what was going on, I didnt realize coolant played that important of a roll.

[@avineshdoss]

I changed 3 iacv not knowing about this. Even new ones have the surging idle. Thanks i will try it.

[@stuartwilson9064]

You are a champion. My wife’s car just had this very issue, or it would idle so low it would cut out. I just followed your instructions and sure enough that spindle on the electric motor was sticking. Sure I had to go and buy the t-20 piece to unscrew those screws halfway through the job, but I was pretty happy when I put it all back together and the car runs perfectly. To anyone else about to take this on, don’t do what I did, watch the whole video first and make sure you have all the tools you need. I’m about to make a third trip and buy some coolant. 👊🏽

[@FixItPhillip]

Good job bro I'm happy you were able to fix it! Plz be sure to subscribe, much appreciated!

[@miguel18815]

Where did you get the T-20 5 point security bit from?

[@FixItPhillip]

www.amazon.com/dp/B001UNAS0I/ref=cm_sw_r_cp_apap_KukdeiipBJFGh That is the set that I got and amazon is where I get it from brotha. Best of luck to you! Please be sure to subscribe, much appreciated!

[@fabrivila2774]

Do you realy need a scanner? Last step.

[@FixItPhillip]

No its just a tool to actuate it and see if its responding properly

[@richardmorse5307]

We had the same problem with a 98 Accord V6. IACV was badly clogged up and didn’t work after attempts at cleaning. Bought after market valve and found that it idled high but had to go with it as away from home. Once back the idle returned to normal and has been working ok since then. Thanks for your excellent video that was the best!!

[@tylerchassie7273]

Heres a list of things Ive done to my 2004CRV that was burning a quart of oil a week, running a bit harshly and not idling perfectly.. it had 310,000km on it. I got it running alot better and its not burning oil anymore: -sea foam GDI intake cleaner, -oil cleaner additive before oil change -used “high milage” oil -put in the most expensive oil filter -lucas oil treatment for sealing the engine -gumout fuel line cleaner additive to gasoline -new spark plugs -new battery -cleaned IACV valve -cleaned the mass airflow sensor with mass airflow sensor cleaner. All of these repairs were relatively cheap and it was very satisfying to see how doing simple things can make a drastic change in the cars performance.

[@JeffDing-in7kg]

Great video. My car failed smog check yesterday with Amazon's china knockoff Idle air control valve for my 2003 Honda accord. Luckily I kept my OEM IACV. Followed your method and restored the function of my old OEM IACV. I didn't have a five star screw driver so I used my locking plier like a wrench to unscrew the electrical portion of IACV from the mechanical portion. In fact, I de-threaded one of the original screw that held my IACV onto the throttle body as well but I am still using the same the screw by using the same locking plier technique. (Honda dealers didn't have any screw available until next week... maybe most people de-threaded those screws because they didn't use your impact driver- hammer technique.) . Again thanks, you saved me a ton of money and time since I don't have to special order new OEM IACV now.

[@FixItPhillip]

I'm happy it took care of the problem. Good job

[@kinzua88]

you saved me. I replaced a starter in my 02 CRV and thought I missed a vacuum hose. tore it all apart again and I connected everything as should. stumped, found your video, did what you did and bam! car idles showroom new! thank you!

[@FixItPhillip]

Nice good job, please be sure to subscribe, much appreciated!

[@michaelfagan6123]

I just did the starter on my gfs cr-v a few weeks ago and then it started doing this. Getting ready to clean the iac now lol

[@Corner24media]

Excellent video. I had to use vice grips on the two phillips screws, and a dremel to turn those weird Torx like screws into a line that a standard screwdriver would work on. Thanks Phillip!

[@chriscadman5715]

Best video on how to clean the IACV. Didn't know you could remove the electrical part, so now I can do it!

[@skeptick6513]

Your video and some of the comments saved me some grief. Did a starter replacement and then got the surge. Checked all over for vacuum leaks. Pulled some codes but didnt read data Pulled off idle valve, slightly stuck from carbon but i think whats happening is when the intake and throttle body are removed eg when doing a starter replacement that the tinyest but of crud grit or whatever causes the valve which is probably already carbonuzed to stick, anything entering the throttle body just drops right in to the idle valve. It took vice grips to get one of the phillips ana JIS screws loose, the torks i cut a slot with a die grinder and a sharp screwdriver broke those. Thanks honda man..

[@astreena5113]

Wow I have just had the person to change the high pressure hose and still the revs very high. Car is drivable Thank you soo much, you have explained and shown everything in the short amount of time . I will ask the person to check to the IAC valve before anything else. Good work your video has saved hundreds of $. And yes having a good OB2 is very helpful in taking the guess work and trouble shooting out.

[@FixItPhillip]

Glad the video helped, please be sure to subscribe, much appreciated!

[@jameskeeler6321]

Idle relearn. Disconnect battery and ground negative with positive terminals for 10 minutes. Reconnect battery. Turn ignition to key on engine off for 2 seconds, then start car. Let idle for 10 minutes. Idle should drop down below 1000 rpm, after a few minutes. When that is complete the idle relearn is complete and your good to go. If the idle does not drop down below 1000 rpms, then you need to reset the computer using a scan tool.

[@ryan0400928285]

Your video is very descriptive, and helpful. Have 03 crv that sat for a couple of months, then had revs surging from 1100-2000rpm by itself. Cleaned as you described, and she's a goer. Thanks for your help.

[@steveng216]

Thank you very much! Using your method I was able to dislodge a chunk of intake hose rubber that was lodged in my iacv flapper. Car runs great now. Saved $100s!

[@FixItPhillip]

Good job. God bless

[@weechitamex]

FixItPhillip : THANK YOU SIR FOR THIS FULLY DETAILED VIDEO HERE . BEST I SEEN YET . BEST BLESSINGS .

[@FixItPhillip]

You're welcome! Please be sure to subscribe, much appreciated!

[@mikepushman3738]

Great Video, Thank-you. My IAC valve was stuck, T-20 were rusted pretty badly, Used a fin blade hack saw to cut groove in top and unscrewed. Valve was seized up. All cleaned up, new M4-20 screws put in, now ready to test.

[@LincolnLse04]

Can’t wait to check this on my moms 04 crv been parked for over a year cuz it would not idle good and it would turn off

[@shackman1306]

Thank you. It's not often service garages don't just fire the parts cannon. Or try to tell you it's something way more expensive.

[@lyokoboy0]

An extremely clear well put together HD video showing the exact procedure to follow. This has been a big help, thank you.

[@kkampy4052]

I just did this, fair warning, be super careful getting that small vacuum hose off. I was twisting mine and the nipple snapped. Also, the torx were impossible to get out. The head is so shallow and if there is any rust, there is no bite.

[@mikeymikechicago]

you saved me alot of stress thanks man. I put in a k24a1 from ebay and was wondering why it was high idle. well yup that was the issue !! thanks man I was getting scared my engine swap was for no reason. much appreciated 🙏

[@FixItPhillip]

Nice good job

[@bigtexas7580]

*That's a badass diagnostic tool you're using. Thought my little $400 snap-on scanner was nice lol.*

[@FixItPhillip]

Thanks for watching, please be sure to subscribe, much appreciated!

[@adrianperez6120]

My 02 crv is having the exact same problem. Getting ready for tomorrow, im going to follow your video. Wish me luck!

[@bekomcar554]

Greetings from Seoul, Phillip. Big thanks for sharing your insights and wisdom. I bet I now know what I will be doing should that happens. Cheers.

[@aryanprivilege9651]

I got P0505, P1519, P1505, thinking it’s same issue on sister’s 2002 with 133k miles. What kind of diagnostic tool reader recommend for cars imports, Honda Toyota motorcycles? Especially for Non professional, imagine your a real mechanic. Run to auto zone to check codes, got a free one with apps on phone rubbish.You don’t disconnect battery? Noob, just fixed stuff cause cheap, didn’t always have enough spare loot. Thanks for making these! Excellent job.

[@craiganderson8325]

Thanks so much, followed your advice and perfectly solved the issue!

[@garyphloyngam7148]

Thank you for your time and knowledge. I think im having this same probably but only randomly sometimes

[@CatarineausArmory]

You sir are a master of your trade.

[@bandofcomrades]

Thanks a lot! Got the same issue on 1999 Honda HR-V, but pretty much all Hondas are the same :)

[@michaelgranville1733]

Best video on this I've seen. 🤘

[@fireforcecreative]

Hey Phil! Thank you! just replaced the starter motor on my cr-v, and putting the intakes back I had that very experience. Now I know what to do!

[@lakaipotauaine2976]

Recently my 05 Honda Edix was running very low on rpm so I took apart the throttle body gave it a good clean up with throttle cleaner and it did fix the problem but the check engine light is still on So I am giving another crack but with this method and will see how it goes Keep you updated 😊

[@winstonwilliams2097]

How much with it cost to have it done by the pros?.

[@2Rashma2]

Unplug your battery and turn your headlights on and leave it for 5 minutes to drain all the power out, once the computer is complete drained it will reset, attach battery back on and turn car on,that should remove the check engine light

[@moeatuaiva6866]

Impeccable ! La crv 2 de madame avait le même problème . Après avoir visionné ta vidéo j'ai fait le boulot et tout est revenu à la normale. Good job and thks ....

[@alexanderthegrape5370]

Polly vu franse

[@testdepth377]

Very much appreciate the video! Finding that 5 point star T20 is near unobtanium. Only choice is Amazon or Ebay. I even tried Pepboys but I had no idea they no longer sell parts.

[@radleybradford1356]

Holy Smokes Capn Gung-Ho!! Props on a great video, love it, got the finesse for sure! Even left the battery connected, love the gusto!

[@allenscott3943]

Your video made the job so much easier thanks very much!

[@Dr-wheel-barrow-opperator]

Thank you for sharing your knowledge

[@Laner84]

brilliant 👍🏻 worked for me on my k24 Honda Elysion thank you

[@65gtotrips]

Just like he says, when the 2.4L has say about 70K to 200K miles +\- and the engine sits for weeks or months, the IACV will absolutely get seized. I guarantee this procedure works to remedy the error code. - Note: The system may or may not throw an OBD code yet the idle will fluctuate.

[@thainnei]

Thanks to you good thing is I found you’re video and help me a lot . Very helpful video .

[@dugmetcalf]

Thanks so much. My daughters 2003 Honda CR-V was stalling at idle. 2 mechanics looked at it and scratched their heads. One said it wasn’t throwing any codes so there was nothing he could do. How hard it is to find a mechanic that really knows their craft anymore! The other replaced the fuel pump sweating that was the issue. The idle air control valve ended up being the problem and this video was awesome for showing me what I would need to deal with and saved me a lot of trial and error. Thanks to the video creator, you gave me what I needed to fix my car after 2 auto shops gave up!

[@FixItPhillip]

You're welcome

[@alexanderthegrape5370]

20 years turning a wrench I've never seen a Honda fuel pump 😳

[@matthewchappell8512]

thank you mate followed your instructions an fixed my idle

[@darmansyahkadir5056]

I'm #1 fans... thank for your video

[@FixItPhillip]

Thank you!

[@fredlamisere435]

Very helpful, save me money. Good job man

[@nickv4073]

Nice clear explanation. However, you had the throttle body out. Why not clean it too?

[@OryanTv]

what size is the philips screw holding the valve onto the throttle body

[@LilyWillow22]

05 Honda Accord. Opposite issue…too low of idle. Installed new IAC. same problem 😮

[@willmacleod1742]

Youre the Man, champion mate, many thanks.

[@mothibimasire404]

HEISH YOU SAVED MY TIME MAN

[@saginaw60]

You are very carefull to scribe a line on the stepper motor in order to re-assemble the same position. So why are the holes slotted? Can that be used to modify idle speed?

[@paulfox4040]

Appreciate the details on this! Been chasing IACV code with changing out parts....and now see i need to remove lower piece to clean carbon. 🤦‍♂️ This was my only issue all along. Also, what was the scanner/test software you were using? Sweet to be able to test via the software. Thanks again!

[@FixItPhillip]

Autel ms906ts

[@riccoc.8891]

great job dude, very good information

[@saginaw60]

Wish you could do something to decrease that loud irritating beep from Honda dash boards.

[@markos1388]

Thank you so much mate!!!!!!

[@uirandevicente3054]

thank you so much!! almost got new part before see your video!! save my money hehehe cheers!

[@FixItPhillip]

Your welcome, please be sure to subscribe, much appreciated!

[@094340]

Thanks Ringo.

[@FixItPhillip]

Haha you're welcome

[@Elvys809]

I had the same thing and did the relearn idle and checked for leaks and nothing i did almost everything that says on the internet the last thing that i did. I went to the mechanic and with a computer he reset the throttle body and relearn the idle and then it got FIXED. Everything went back to normal

[@Rax-ww8cn]

If I don't have an ECU, is the IAC test not necessary once the valve is cleaned?

[@didoytenoriotv6108]

Watching from philippines, thanks a lot

[@jesseh9523]

I recently did this to my crv but now the car won't start every light in the interment cluster lights up but the car won't even crank over if you have any idea what the problem may be please let me know. Thanks

[@juniorsvlog9724]

Try resetting the electronic control module

[@leosainz6764]

Everything amazing my problem is that those coolant hoses are stuck, they like welded or burn to the idle valve! And I can't find the new parts(hose) to replace them ! Anyone knows the part number! Or what to do, I worry if I cut them, they will not fit right anymore.

[@loucartwright5352]

Thanks for the video. It has saved me a bunch of money. Does anyone know what size those t-20 screws are I need to find replacements the heads are totally rusted through.

[@adolfalvarez5534]

The only torx I'm able to find are 6 point i can't seem to find any 5 point where can I get that same security bit you used?

[@FixItPhillip]

I have the VIM 5 point security bit set, but I don't see it on amazon anymore, here's another one amzn.to/49hnMhH

[@adolfalvarez5534]

@@FixItPhillip thank you for the link i appreciated i will order these

[@justgoodtobeout]

Would anyone know if the procedure can be done without cleaning the codes. Thanks

[@ajch1153]

Where did you get your T-20 five spokes? Thank you

[@FixItPhillip]

www.amazon.com/dp/B001UNAS0I/ref=cm_sw_r_cp_apa_i_l50jFb31HQ4N5

[@ajch1153]

Very informative video. Thank you

[@sk8allica1]

I talked to a mechanic about that surge and he said I needed a whole throttle body. I wonder how he treats his clients !

[@FixItPhillip]

Allot of them don't want to take the time to try and repair first. They just want to put a new part

[@AgentAle47]

Do you think this could affect gas mileage? I don’t have any code, however sometimes idling my car idles close to the 1000 RPM, sometimes is lower (around 780-800 RPM).

[@tahirjamil1753]

This video very helpful my car is accord 2004 high rpm problem what's a problem please tell me

[@sharwonismail6799]

I did everything in the video, now my car won’t turn on at all. I have no idea what I did wrong. Followed the video to the t

[@alliemercado3825]

Imma be doing this tomorrow any advice for me. I don't have the special tools you used but I do believe I have that 5point drill bit you mentioned. I am going to be cleaning the throttle body butterfly and then I saw your video and decided to clean that as well since imma be so close to it. However, I didn't get a code, but my car is having this problem. It idles high when I'm not moving and it shakes bad.

[@lawrenceengel3330]

Nice video, very helpful 👍

[@almoraleta1915]

What are those 2 screws called(connects the motor part to the mechanical part) of the iac valve? The black plastic to the aluminum portion? Thanks.

[@FixItPhillip]

You need a Security bit, it's like a torx but 5 point

[@hondaalex5]

Hello, that little vacuum hose. Is it connected to a sensor? If so, what's the name of the sensor?. Your reply is appreciated.

[@ronm4850]

i am currently having this issue. 2003 honda crv 2.4 UK manufactored model. things ive tried, 1)purchased the $300 oem iac , 2) iac relearn procedure 2sec on, then 3k rev for 10 without any load, 3) removed the ecu/pcm fuse for 5 min then replace and tried the relearn again, 4) check for vacuum leaks, 5)replaced the pcv incase this was the issue. i initially removed the old iac cleaned it and installed with no luck, this is why i bought a oem replacement. One thing i’ve noticed, when i erase the p0505 code with obd scanner, the crv idles perfect until driven and the check engine light comes back on. hopefully you may have some insight. thank you in advanced

[@abygailbird4746]

did you fix your problem? im having the same issue

[@ronm4850]

@@abygailbird4746 unfortunately i didnt find a resolution. After driving for weeks the check engine light came off, but engine still have slight idle issues. I have posted my question to many youtube sites but no one was able to help with this.

[@cutthroat0075591]

Any updates on your crv? Same issue with mine :(

[@ronm4850]

@@cutthroat0075591 still the same issue, been going on for a long time, now i have to get inspected and im just stomped.

[@cutthroat0075591]

@@ronm4850 Hey I might have found my problem, I got the p0505 code and when I replaced the iacv, I figured since I took the throttle body off I’d clean it, well that’s the thing, I cleaned it off too good apparently. There’s a very thin coating of what looks like sealant of some sort around the inside and around the butterfly. It helps close off the throttle better. I pulled one from a junkyard and carefully cleaned it, to not remove that sealant. I installed it yesterday and my car is idling at 700! It’s never been that low, it was always at 1000 on idle. I reset the code and now waiting for sensors to set for smog. Will update if needed. Good luck!

[@liketofixit-ei5uz]

any advice for this same code for a 2009 Honda CRV. there's no IAC on the throttle body.

[@HUFF-N-PUFF-2024]

My 2010 crv has a high STFT at idle could this be the problem? i have checked for leaks on hoses could not find any

[@DokErnieTV]

Hi bro... Good morning... You are the best mechanic on earth what kind or brand your using scan tools thnx bro your answer waiter for...

[@FixItPhillip]

Hey brotha. It's a autel ms906ts

[@nameerrabadi7683]

excellent video ,perfect

[@The3000now]

Have you ever had a customer state that it sounded like a balloon deflating as they tried to accelerate and it won’t go up to full speed?

[@FixItPhillip]

A very clogged catalytic converter can sometimes sound like that and no power

[@lisawong826]

Thanks Philip... Great video. I saw someone clean the t-body and valve without disconnecting coolant lines and without removing the electronic actuator. Would you be worried about cleaner getting in the actuator?

[@cruzcontroll718]

Great video! Very detailed. What scanner did you use?

[@FixItPhillip]

Autel ms906ts

[@jessicaborg3911]

This is an older model of my car, do you happen to know if the IACV is removable from the throttle body on a 2010 CRV?

[@peterwang7451]

I have 2007 Civic EX. Recently experienced noise, unstable idle, and shaking when cold starts. Cleaned throttle body, EGR and MAP sensor. Replaced IAC valve. However, problem has not been fixed. Do you think if I should replace intake manifold gasket? Thanks a lot!

[@FixItPhillip]

I would take it into a good shop to get it diagnosed so you're not just throwing parts at it or spending extra money you don't have to

[@jrus1]

thats a good scan tool .. which one is it ?

[@FixItPhillip]

Autel ms906ts

[@edgardoarroyo7418]

awesome video🔥🔥

[@DougHinVA]

NOT Phillips ... a Japan car uses JIS screw heads on the black plastic part, so get the bit that fits them and also use Kroil or wd-40 at the screw base to loosen corrisen .... then unscrew them Phillips bit will ruin the heads.

[@salvaciongenetiano6881]

Hi sir my car is a Honda City EXI(1997) it jerks at low speed,and the rpm goes to 1500/1300,and it goes down when air con is switch on,any advice please.

[@mikeyjlv]

When you say you put a little silicone on the gasket, what kind do you use? Thanks

[@TomCruz49]

When you put it in drive does it start to accelerate without pressing the gas pedal?

[@kimmarier8185]

Hi, I'm hoping someone might be able to help. My daughter has a 2001 Honda CRV that's throwing a P0505 code. Here is her description of the problem .. CRV wants to surge. CRV jerks forward when foot is not on gas. Car jerks alot more more frequently when going down a slope....Iacv was replaced.. No vacuum leaks found. Computers wires were checked and I was told they are fine. Throttle body cleaned. FI ECU fuse is not blown. Oh and main air intake hose was replaced (bottom was cracked apart). Mechanic has no idea what could be STILL causing the problem or how to fix. PLEASE any help is appreciated. Thank you .

[@cooco8518]

Where is the IACV on honda crv 2006? I cant identify it as the throttle body is different

[@mongeesan6662]

Hi sir, does crv R20A engine have IACV VALVE or not? Where it located ? I had issue when cold start RPM not consistent, but when warm is ok....

[@johnsherman218]

Thank you friend

[@FixItPhillip]

You're welcome!

[@johntagawa6390]

Is this applicable if you had a check engine?

[@bigmeechmob9919]

This happen more when my ac is turn on any suggestion?

[@theroyalone7588]

Hello what year is your Honda CR-V , ? I have 2005 Honda CR-V was wondering does that model have IACV too?

[@charliedc2A]

If you turn the slotted motor does it raise or lower the idle?

[@johnquerhubenflores9322]

can we do it manually without computer?

[@deanrowan9032]

Where do you find the bit to remove the IAC switch from the valve body?

[@deanrowan9032]

saw this farther down: www.amazon.com/dp/B001UNAS0I/ref=cm_sw_r_cp_apa_i_l50jFb31HQ4N5

[@PS-jv3ri]

Harbor Freight sells a cheap set of bits

[@adejobidavidmonday5702]

I drive a honda crv 2010 and the problem code is p0507 and ever since i have been trying to locate where it is pls i need help