Free easy DIY fix for check engine light with codes P0440, P0441, P0446 

You are a Rockstar my friend! Saved me hours in the shop and money on parts. Just checked and had the exact same issue on my 2002 Highlander. Thank you so much for pointing this out. I really appreciate it!

You are the man! I got check engine light for my 2000 Camry/Solara and got codes p0440 and p0446. Redid my air filter not too long ago too and when I checked that little plug it was just hanging!! Saved me so much time & $$. RU-vid saves all. Thanks a lot man

After watching this video, I checked my 2002 RX300(Also received P0400 P0401and P0406 codes) and sure enough, my line was disconnected. Hooked it up and no more codes. Thanks for sharing this video.

He he he he he! You've got a happy friend here! I've got my check engine light for quite a while. Got code reading at Autozone this morning and boom, 7 codes! 3 of my codes were P0440, P0441, P0446. Went to check my 02 Highlander after watching your video and what? The exact very same hose was disconnected at the bottom! I put it back as you said, disconnected one side of the battery for 10 minutes to reset the check engine light and then reconnected battery. At this time, no more check engine light! Thank you sooooo verrrry mucccchhhh! Now I am waiting to see how to fix the other codes (P1346, P0335, P0340, P1350) if ever they come back. And I still have the VSC light on. Anyway, at least one headache ($$$$$) is gone! God bless you for sharing this!

I know this is old....but like everyone else here.....THANK YOU!!! My Ford F150 died with so many evap and maf codes I went and picked up this car this weekend. Code popped up and scanner shows evap code and my hair turned grey. Saw your vid and there it is.....loose hose!!!! Thanks again!!!!

You just saved me a fairly large job and about $300! Note to self: be more careful when replacing the air filter

After watching many DIY videos, this is the only one that applies and works for me. Saved me a ton of money.

I am so mad! I have put aside 500 to fix those codes... to find this was it -.- Thank you!!! Seriously thank you!!

Awesome. My wife's car is this exact same vehicle. 2002 Toyota Highlander. We had it serviced a month ago and after a short time, the check engine light came on. I looked all over the engine compartment and found nothing wrong. So I finally bought a cheap code reader. Checked it this morning and those same codes came up. So I typed in the code here on RU-vid and sure enough...your video came up. I went out to the car and there it was...the hose was not attached. Thank you sir.

Your the man! Check engine light came on tonight and I reset it with my reader. Got home and saw this video. Checked my hoses and BAM! You were dead on with this one. Same year, make, model and location of the culprit hose. Now I can breathe a sigh of relief! Thanks dude!

Had the same thing happen to me. Wow, great video. Mine was a tiny hose, one side came off, the other side has the VSV was loose. The plastic holding the VSV is also broke so its hanging by the hoses and the electrical connection. 2002 Lexus IS300. Thumbs up

wow, just had oil changed and check engine light came on. code said p0441. Had been looking into this for hours until stumbling onto this video!!!!!! Thanks for your service to all!

A big THANK YOU to the author. This is the best video that shows me where is the vacuum hose (tracking down from VSV = Vacuum Switch Valve). I watched at least 10 videos before this and none guided me to the vacuum hose. Yes, last month I changed the air filter in my RX300 and then BAM! (just like you said), I got the check engine light on. I followed other videos to change: gas cap (easiest & lowest cost $11 at Pep Boys) to the whole evap system (near the gas tank for $360 bought thru Amazon). After each fix. I used my OBD II to clear the car computer and turn the check engine light off. However, twice check engine light turned back on after every 100 miles. Finally, I was lucky to come across your video and found my vacuum hose was loose. I think this 3rd fix will cure the problem for good. Note: My car is RX300 not Highlander (but all-in-all are in the same Toyota corp's design) but your verbal instruction is so clear + the video guided each step so I found the vac hose with no problem.

This happened to our '03 Highlander three times...the first was at the dealer, the second at an Oil 'n Go and the latest at the same dealer. The first two times, reconnecting the hose to the air filter box as you've demonstrated solved the problem. This latest issue, I reconnected the hose, but the check engine light did not go off. The mechanic at a trusted repair shop told me the codes had to be reset, which he did, but after a few days, the light came on again! I'm now informed that the Purge VSV needs replacing. The dealer wants $167 to do the job, but I see the VSV part on ebay for as little as $47...and I may be able to replace it myself if it's what you've identified as the purge valve in your video. I'll also check with my local autozone as mentioned in another youtube video. Thanks for your demonstration...it's spot on!

I had this EXACT issue with my wife's Highlander. Checked the air box and - BINGO - disconnected hose. Thank you!

THANKS for the tip. Changed my air filter 3 months ago on my 2003 Highlander and just started seeing the Check Engine Light today. OBD-II code reader said trouble at P0441, 442, 446. I'm puzzled why the light wouldn't have come on sooner. I looked today for the disconnected hose and BINGO, there it was. Reconnected the hose and now waiting to see what happens. You have a new subscriber. Thanks again.

You rule! In my case the spot where the hose connects had broken off, but thanks to this video I knew where to look! This turned a trip to the shop into a $40, 15 minute DIY job. Thank you!

Great job. Quick fix. Saved me a trip to the mechanic and likely getting ripped off. My 2002 Toyota Highlander has been throwing these codes for months.

This was exactly what happened to my '02 Highlander. Same codes, same hose came off. Thanks for the excellent video!

Had codes 441, 442 and 446 on a 2003 Highlander and found the open vacuum hose as shown, but it was on the other side of the hose. Thank you. 5 min. fix., reset the error codes.

OMFG....this happened to me. For 2 years i have just reset the code. I recall it happening shortly after when i replaced air filter. I found the hose unattached ROFL...Thank you!!!!

2002 highlander: This was exactly my problem. Thank you for this video!

Great info! My 440 was a loose gas cap, didn't tighten after a fuel stop. These scanners are great, along with helpful videos on Tube, like this one!

Awesome! Excellent short video. Just what I needed. Loose hose from the dealership.....

Thank you so much! I know nothing about cars and got all three of those codes and this saved me so much time and money!

wow I got exactly the same problem. This video saves me a lot of troubles. Many many Thanks !!! Thumb up

Thanks for being to the point and informative. I have seen other videos on the same topic and they are twice as long or longer with no additional or better content.

Thanks for posting! have a 2003 Highlander with codes 441, 442, 446. O Reilly was great with codes and print out, then began researching. Began thinking of what's been done to car lately (gas fill up, oil change, etc) and if one of those incidents could have caused the codes. Sure ennough, had oil change 1 week ago and guy tried to sell me air filter based on my dirty one he pulled. Putting air filter back in he missed a hose that got disconnected when pulling air filter cover off. Hose is back on, all is good now. Def check simple/low cost things first!

Last time that this happened to me Toyota charged me $680 to fix it. Today I fixed it myself :) Thank you!

Thanks for this. My 2001 Highlander had this same issue, same three codes. In my case it was the TOP end of the hose that was loose, but it was the same hose. I had some work done - BY TOYOTA - just before this happened so I can only conclude that it was the Toyota service guys who left me with this problem... which is what I pay extra to take it to Toyota service to AVOID!

Thanks so much for this! I knew about it, and it had happened before, but it had been so long since it happened that I couldn't for the life of me remember where the hoses that typically get dislodged were. This video saved me probably at least a $125 engine inspection fee. I think I'm going to take a photo of the hoses for future reference.

Awesome post. Just bought a 2003 Highlander and after 25 miles it generated a P446 fault. I was thinking that I'd been hoodwinked by the dealer. I saw this video and sure enough it was the same vacuum line that you showed. Thanks and God Bless

Thank You! I had the same problem! Fixed now - I think that happens to a lot people when they take the car to change the oil and mechanics check the air filter to see if needs to be replaced but forgot to put the hose back in.

You are awesome! Exactly what happened! This video saved me a few hundred dollars! Thanks!

You are the man! Can't believe it was something so simple. Thank you!!

Wow man, thanks for sharing this video. The exact scenario happened to me, except I was cleaning the ICV, and that was the cause.

R U EFFING KIDDING ME!!! UR A GENIUS!!! 03 Toyota Highlander receiving CODE P0441. Popped my hood (see 1:25) looked for the hose and found that hose was DISCONNECTED fr the top. Total time....less then 30 sec and had 59:30 minutes left to finish my lunch. Thanks WTC!!!

Exact same vehicle and exact same codes. I've been putting off troubleshooting this for a while figuring it was going to be a lot of work and $. Then I check and the exact same hose is disconnected. Thank you so much!

dude you are awesome this worked. so easy. took a little while to find the vacuum line that came off. but it worked so perfectly. saved me a lot of money probably. glory. thank you.

Thanks a lot. That was exactly what happened to my Highlander.

Same exact thing happened to me on the same vehicle. Thank god for this I love the internet

Appreciate it. That's the issue.

I can't believe ,I fount the same problem when I fix it ,the light turn of I'm given you 👍👍👍👍👍👍👍

This fixed my problem! Thank you 🙏🏻 I did knock off a hose 😂

Exact same problem I had. Thank you so much for posting this!

I have a 2000 Camry- and the engine light came on last week!!! There are several issues that present themselves!! Loose gasoline cap!! (not that) Exhaust sensor most likely!! The Toyota Dealerships are so expensive!! I resent paying the money they want-for such a small repair I will try the air intake though Thanks

Nice work bro. Saved me a lot of hassle.

Thanks for posting, I had the exact problem on the exact car (make, model and year). What are the odds? Probably pretty good...Anyway, thank you. Saved me a trip to the mechanic and some embarrassment, not to mention the $$$.

wow! got my codes read and it read po440 and po441, and what do u kno??? My hose was off! Thank you so much! Im relieved it wasn't anything major!

I love your video because i just recently changed my air filter and hose was OFF causing a VSV code. I put hose back on a light went off!!!! AWESOME

Thanks a ton!! The hose as shown in the video was disconnected in my 2001 Lexus RX 300. I fixed it. I'll wait for the CEL+VSC lights to go off. If not, then will again do a code check to see if the problem still exists..

Thanks. This solved my problem with the codes.

Thank you sir I was about to go through a list of expensive fixes. I had my vehicle service a couple weeks back and the air filter and oil was changed then the next day I get all of these codes. I just went outside and sure enough on my 2000 lexus es 300 the hose was hanging loose.

you are my hero!! Same problem happened to me a I fixed in 30 secs..

thank you... I had the same problem. I fixed and now waiting to clear the light.

i love youtube, this exact thing just happen ed to me , same vehicle, same codes, same freaking liine which came off loL!! Thanks hoss, for posting this

I had the same problem and thanks for the help. 5 star..

Thank you for the helpful video. God bless you in Jesus’ name!

Thanks for sharing, I also had the same PO441 code after checking the filter. I just took a look, and low and behold that hose was not connected. I just reconnected it and we'll see if it fixes it the code. I have a smog upcoming, and from what I've read it could either be a hose, gas cap, or other type of leak that would be somewhat costly to diagnose & repair. Worse if it is in fact the canister they are talking about a $600-1K fix. Let's hope it was just the hose :)

Found same issue on my 2002 Lexus Es 300..Valvoline broke the valve off while taking the Airfilter off and didnt tell me Shit..

YOU DA REAL MVP THAT’S WHAT IT WAS THANK YOU FAM

Wow. Great, I have the same problem on my ES300, I am gonna look for the hose today! :)

I had the same problem with my 04 corolla s. Luckily the check engine light would go away randomly just before registration was due. The car would pass and the weird thing not throw any faukts. I was told it was the canister. But would need to run a machine to see where the leak was at. If i tried to fix it and wouldn't pass the smog, the state of California would still give me my sticker if i spent x amount in trying to solve the problem. Well my registration is up again on may. Check engine light on. My stereo had gone out and i decided to replace the fuse. Upon replacing it, i noticed one of them was busted and the other one was good. Both of them however had corrosion. I pulled out all of the smaller fuses and they all had corrosion. I replaced all of them, turned on the car.... No check engine light. Apparently there are two fuses that do control the emissions system. Try to replace them. Worked for me. I took it to get it smogged and nothing popped up. Car passed with flying colors.

Lifesaver! Thanks brother

Another occaisional fix is to screw your GAS CAP on super tight. Code still doesn't go away? Buy a brand new knock-off gas cap, $10. Still didn't go away? Get an good OEM one from a junkyard for $1, really making sure the GASKET is good. Still didn't go away? Get the Toyota one from the $tealership for $32. STILL didn't go away? Order a gas tank vapor pressure VSV solenoid for YOUR car, a knock-off one from China, $55 and three weeks of shipping. It's pretty cramped installing it down by the gas tank, though, so you'll need a super bright flashlight and jackstands. The dealership would have charged you $500 for that, though.

Of course it's evening right now so I can't go check very easily. I had this code come up today with a 2005 Dodge Grand Caravan, I hope it's this easy to fix...

I had those ignoring codes on my 1998 Camry for over 2 years after changing numerous parts because the code would read back saying something about EVAP/EGR. But once I changed my Charcoal Canister which sits somewhere near the gas tank...my check engine light went away and never came back again, just wish i would have replaced this part before i wasted money changing other parts but i was hestitate in replacing the Charcoal Canister because it cost like 300 dollars just for the part!

Very helpful ,thank you.

I had my air filter and my break light replaced 3 months ago on my 2002 highlander. check engine light recently came on and that same break light is off again. I bet the wire on the light is loose (I watched a video on how to fix it) or the pipe on the air filter box is out. will check both now.. thank you.

Thank you very much.

I just had this erro on 2002 Toyota Echo. It might also be loose gas cap according to Google

Alright! I hope and pray this is the problem with my 2002 Chevy Cav. I font even know where the air filter is but will see if I can find it. I just know that I've had the engine light on and got that P0440 code. I gotta get this together by 12/31.

Thank you for the video. Problem solved

Thank you I go check now

Thank you, very helpful

Thank you. It was exactly that

Thank you so much!!

tengo una rafor 2009 y no me prende por que la luz del chequein no la prende como devo de aser

Having issues with p0448

Thank you!!!!!

Thank you !!

i have this code but ive checked this hose an its where it needs to be . my car smells alot i dont know if it has to do with this code but i really need help.

THANK YOU!!!!!

Thanks a lot my wire was unplugged!!!!!! I don't have an ODB READER though....Will it go away by itself?

Hmmm, I scanned my uncle's 2001 Toyota Camry, and has all 3 of the codes, wonder if it's that, or the gas cap, since he told me they had replaced the gas cap once, and did it again!, will try to check it for him, maybe it's something as simple as this!, Thanks!

Dude please help me. I have the same codes on my 01 Camry. I ran over a huge rode bump on a high speed and since then my car lost its torque and the check engine light popped up.

I wish that’s all I had.

how long does it take for the light to go off? I just put the tube back together and hoping that was the problem

My car rumbled when I found out about my check engine light was blinking...is this usual when the light turns on? Can I easily fix this myself?

Shut the front door. I'm willing to bet this is the issue with my 2004 Ford Escape.

after the fix of these codes, does the check engine light need to be reset?

Good video, my 05 corolla has a p0441 code. I have had the purge valve replaced, carbon canister and gas cap. The light still comes on. What is going on ....

Awesome video! can you do a P0171 for a 99 ES300 thank you!

this came on my jetta and i nearly shat myself being that its a 2002. i was praying it wasnt a head gasket or some shit

I also have P0325 & P0505 codes detected. Do you have a video for those codes too?

Same model and same issue after checked the air filter. Not sure how to reset the code.

hello.I'm Samson and my check engine pop up in the dash board and this problem persist even when I remove battery terminal. what is the cause and how can I resolve this problem.

OH! Did you notice he put the filter back in UPSIDE DOWN?

Hey dude, Im having those same codes on my toyota celica 2000 and I cant find the issue. Please help me

will this work on a toyota prius 2010?