2007 VW Jetta P0455 Check Engine Light Evap System Large Leak Bad N80 Purge Valve

Hi Guys,
Here we show how to diagnose and replace a faulty Evap purge regulator valve on a 2007 Vw Jetta with 2.5L engine. This is a common failure point on these engines and the fix is rather simple for most do it yourselfers. Hope you guys like the video and leave a comment or thumbs up if you would like to see further videos for various check engine light repairs on 1998-2018 Volkswagens.
Check us out if you are in the Southern California area and need Volkswagen or Audi service/ repair/ help call the shop anytime. We are located in Huntington Beach, Ca right off the 405 freeway
@MattsAPlusCarCare
WWW.MattsAPlusCarCare.com
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[@catfishsnagger3284]

This is how all instructional videos should be. No BS. Great job

[@matttorian]

thank you!

[@rodaraguz]

I got this code P0455 and changing this purge valve worked for me! My car symptoms were 1) a "knocking sound" by the gas cap after turning on engine for few minutes 2) weird suction and gurgling noises in motor after shutoff, and 3) car would not start after putting gas, I had to pump the gas pedal to get it working Thanks for this video! Very good!

[@DonaldTrumpIceCream]

Holy shit these are the exact “symptoms” of mine as well, definitely gonna try this solution out!

[@VjFresh1]

Brother! Same

[@uniqueunlocks1859]

One of the best videos Ive seen straight to the point! Great JOB!!!!

[@matttorian]

Glad you like it, thank you 🙏🏼

[@sunnychen1022]

Today I followed the instruction to do the exact fix for my 2014 Jetta. Thanks

[@matttorian]

You're welcome!

[@4sineweaver2]

There isn't a diaphram in this device. It's a solenoid operated valve. When I was replacing the fuel injectors, I apparently broke some carbon deposits loose in the device or in the lines. These small bits prevented the valve from seating and caused the computer to report an evap leak (P0455). After cleaning the valve with some choke cleaner, and cycling the solenoid a few times with a 12v supply, the valve started working normaly. You can test if the valve is leaking just by blowing thru the tube on the end by the electrical connector. If it leaks you can blow through it. When it's working OK you can't.

[@stringsnare]

this was EXCELLENT.

[@user-xv8xl2vl6d]

everyone said gas cap and i bought one and it wasnt it i checked the purge value and it wasn't holding pressure thank you so much

[@matttorian]

You are welcome! Glad I could help

[@TheAni2005]

I can’t agree with other guy. This is one of the best video I’ve ever seen. Thank you tons!

[@matttorian]

Glad you enjoyed it!

[@MegaSling]

Great video Matt!!My daughter 2010 new Beetle threw the P0455 code and right before it's annual inspection LOL. I cleared the code and installed a new gas cap as you mentioned in a previous comment. Drove it for 60 miles and so far so good but if it does come back before I can get it inspected, changing the EPVR is my next step.

[@matttorian]

Awesome nice work !

[@guillermogallegos8477]

Literally my situation right now hahaha

[@raynaderi]

What a great video, solved my 2006 Jetta issue, thank you very much!

[@matttorian]

reza naderi great news!

[@gerardoharo1098]

by far best video on youtube for this! keep making more videos for sure

[@matttorian]

Thanks, will do!

[@franksavino1597]

Thank you Matt

[@matttorian]

You are Welcome!

[@E46325mod]

I have a fuel leak in my mk5 jetta and I thought it was my gas cap replaced it twice and with no change now I see smoke coming from this area when I start my car when it becomes difficult to turn on, if it turns on easy no smoke or issues, I hope if I do indeed have a leak its this part and nothing else seems like a cheap an easy fix

[@g-ua]

Thanks for this video, Matt! It helped to replace the Purge valve for me (VW Golf 2.5). But, today I got the P0455 error again.. :( I don't have this special instrument for vacuum check and can't check old/new spares.

[@matttorian]

Garik Buzov I would recommend to replace your gas cap with a Vw genuine cap and clear the fault again.

[@g-ua]

​@@matttorian, I want to try it, but in Ukraine, I can't find the gas cup for American VW. Also, I read about one of fix: replacement the O-ring 1K0201557A, but my gas cap has the other design (1K0-201-550-F). And doesn't have a replacement O-ring :) I'll try to find it in Ukraine a few days yet (I want to test it before purchase), or I will order from Germany/USA. I worry that this could be a more serious problem. Although it isn't affected my car dynamic/behavior. "Evaporative Emission Control System Leak Detected (gross or large leak)" sounds frightening :) Thanks a lot for your advice and answer!

[@matttorian]

Garik Buzov very good, you can get them on EBay but shipping is time consuming. I would do the whole new cap they do go bad. Cheers mate

[@ripalltrac]

Awesome very well explained!!

[@bebalis1]

Thank you so much for this video it helped a lot. The hose where so hard to remove but everything worked out. Best feeling was when the engine light turned off and everything went back to normal. Thanks!

[@matttorian]

Positivelyme! Good news!

[@armandomyftari869]

@Positivelyme! Did the light turn off immediatly after the replacement?

[@matttorian]

Armando Myftari you will need to use a obd2 scanner to clear the fault code. It will clear by itself but it takes a while 20-40 heat cycles to clear on it own.

[@armandomyftari869]

@@matttorian Yeah it turned off after 2 days. It helped. Thanks

[@matttorian]

Armando Myftari great to hear, happy driving!

[@WazzeeTV]

Exactly what I needed. Thanks!

[@milvolts1]

You are the man!

[@enochyusuph6912]

Very straightforward

[@matttorian]

Thanks for watching!

[@isaiahraygoza4831]

Matt your a god damn genius

[@matttorian]

glad I could help

[@pedrolara1169]

Thank you

[@matttorian]

You're welcome

[@stickybucket1851]

Great vid, Matt!

[@matttorian]

thank you 🙏🏼

[@PissedOfTwinky]

Awesome Video!!!

[@ElflacoColl]

Great video ! I just changed the valve, drove it like 15 miles so far after the change and the light stills on, should I wait a few miles more or is better to clear the light with the scanner ? Thanks for your help !

[@matttorian]

Clear the code with your scanner, it will take 40+ drive cycles to clear itself

[@rgabriel6764]

Great detailed video, Matt. Can you make a similar video replacing the canister purge valve for a Tiguan? There is almost no room to maneuver to remove and reconnect. Much appreciated.

[@matttorian]

TIguan purge valve rarely go bad. More common is the evap leak detection pump.

[@GladiatorUp]

Heck Yeah!

[@shaagealgareb9189]

very good

[@cic-jakevanddalgeemyers.2739]

Thank you.

[@matttorian]

You're welcome!

[@oscarrojas4281]

Guess what you have a new suscriber thank you great job man

[@tellimohammedsaid8465]

thank you . Do diesel cars have an EVAP system !

[@Squidbillies1000]

Handsome young man. Thank you.

[@jsmoveproductions7062]

Yeooo pause.

[@fafastifler6200]

Do I need to disconnect the battery before doing this

[@delilahzx10r47]

What could cause all 5 cylinders misfire? All new plugs and wires.. same code and p2279. Runs rough and trys to stall out unless if you put it in neutral

[@matttorian]

Sounds like you have a vacuum leak, what engine do you have? most likely bad pcv valve/ valve cover

[@reyehamaldonado963]

Brand new authentic vw gas cap, and swapped purge valve. Still have gross leak/no flow & faulty gas cap codes. Car has a strong smell of gas fumes. (06 Jetta 2.5 non turbo)

[@matttorian]

You need to lift up the rear seat and check the fuel pump tank seal. Most likely the seal is installed wrong and a lip is caught and twisted.

[@Jay44220]

Matt Torian if this purge valve doesn’t fix my large EVAP leak what would be my next step?

[@matttorian]

James Hoey could be bad gas cap or if the car has ever been hit in the passengers rear it could be a cracked charcoal canister.

[@rogerlucas1733]

ps) Or maybe I just dont know how valve operates. Is it a special seal that will allow suction from the right but not pressure from left? Or will it hold pressure from either side and only allow flow when solenoid is engaged?

[@NB-ir1me]

Know it’s old but for anyone else, flow only when the solenoid is engaged

[@454vamp]

Hi Matt, I appreciate your time to make this video, So i have a 2006 VW Beetle 2.5 non turbo with the only code of P02400 (Drives fine) Could this valve fix the problem? also, How can I trouble shoot if my gas cap is defective if no physical damage? Thanks

[@matttorian]

that fault looks to be a leak detection pump open circuit which will not be fixed by a new purge valve. You need to remove the right rear wheel and wheel liner to get access to the leak detection pump and look for a unplugged connector, rodent damage chewed through wires, or could be a faulty pump. For gas cap you can have it tested at a smog shop or you can swap it with a good known cap or just but a new Vw cap. This fault will not be caused by a bad gas cap though, you have a electrical issue not a evap leak. Good luck.

[@irinelcoman2504]

Thank you!

[@johnny4713ify]

Hi Matt question I have the Mighty Vac Vacuum only 8000 model. Ive seen others vids that show the opposite testing procedure were they hook up a vacuum pump on the Manifold side of the valve if it holds pressure then its good if not then it's bad. Making sure I can diagnose it correctly. Thanks

[@matttorian]

That method should work fine for testing. The throttle body side is under manifold vacuum with the engine running so that side of the valve needs to hold vacuum. Good luck!

[@johnny4713ify]

@@matttorian Checked it with the vacuum pump and sure enough it doesn't hold vacuum. Code I have is a P0442. Going to order the part. Again appreciate your help and quick response 🙌👍🏻

[@rogerlucas1733]

Nice video. Smoothe delivery. One question: this showed solution if seals were bad. Do these purge valves ever get clogged? How would you test for if so? Try to pull a vacuum from the intake side of valve? Also if it were clogged how would you know if it was faulty seals or a clog as I would think both conditions would 'hold' pressure forced in from the gas tank side?

[@matttorian]

Hello Roger, the purge valves never get clogged. Your second answer is correct, the valve will hold pressure from either side and pressure and vacuum on the engine side. and will pass through both sides when the valve is operating. I holds pressure and vacuum on both sides until it operates and then opens the doorway and will pass through on both sides. Hope that helps.

[@rogerlucas1733]

@@matttorian Thanks Matt, Wasn't sure about clogging cuz saw some videos where they say 'Clean or replace' even showing them spraying brake cleaner into the valve; implying he was unclogging it. ps love the crimp clamp technique!

[@matttorian]

roger lucas they are most likely mentioning the cleaning because on rare cases there can be small bits of charcoal from the charcoal canister stuck in the seal of the valve which can cause a very small evap leak. You could see this by removing the valve and tapping it on a white sheet of paper. Best to replace it. Glad you liked the crimp clamp technique.

[@rogerlucas1733]

@@matttorian That makes sense. But yeah comes a time its best to replace than try to squeeze out the last few days of old one.Do you think the Mityvac you use is useful in that it can be switched to pressure or vacuum? Most of stores only offer the 8000 model that only does vacuum so prob would need to order the 8500 model that does both. Finally what kind of hose clamp pliers do you like for the spring clamps. I'm tired of fighting with regular pliers . Knipex had some good reviews tho one said he didnt like the locking ones. The blue one in your video looks cool

[@matttorian]

@@rogerlucas1733 I use blue point spring clamp pliers. I’m on my second set. They last about 10 years and then wear out. Luckily they are lifetime warranty and only cost about $20. And yes the mightvac is a very useful tool. I like my model that does pressure and vacuum. The pressure is also useful for testing N75 wastegate actuator valves.

[@alberttellez398]

Would you suggest doing this on a 2005 Volkswagen jetta 2.5L if the code is P0456?

[@matttorian]

A bad purge valve can cause a evap small leak fault yes. Its either the gas cap or the purge valve.

[@busslayer4790]

Without a pressure tester, do you think blowing through the valve would work?

[@matttorian]

It depends, if the valve is really blown open you will be able to blow through it. But most often it’s a slower pressure bleed down and you won’t be able to tell by blowing through it.

[@spuk87]

@@matttorian Thanks for this! I took my valve off and couldn't blow through it, hooked it up to 12V and heard it click and was able to blow through. This made me assume it was all OK. I just took it off again and using a pressure tool like in the video, it won't hold pressure! So hoping that is the cause of my CEL all along.

[@matttorian]

spuk87 sounds like you fixed it, good job

[@_DC5DEE]

Will this process work with a Vacuum Pump?

[@matttorian]

SINCE'96 yes vacuum should work to test the valve as well. You would want to vacuum the throttle body side

[@_DC5DEE]

@@matttorian Ok thanks! And it should still hold pressure right? If it's good?

[@matttorian]

Yes it will hold vacuum if it’s good

[@_DC5DEE]

@@matttorian Ok got it man thank you! I wasn't sure if it would work because I only have a vacuum pump but now I know it's bad, getting a new one tomorrow, thanks man I appreciate your help! 💯💯💯

[@CamilleLovesYou6]

1:33 / 1:57

[@juanpablomartinezolvera207]

Id part for golf sportwagen 2010?

[@matttorian]

Yes

[@user-sm3ho7nb2c]

Hey I like your video I have a Porsche Panamera 2010 i have code 4055 I changed the gas cap twice and I change the purge canister solenoid and I still having that check engine light code 4055 I don't know what else to do I came across your video sounds great but having this issue is driving me crazy every time I put more than a half a tank of gas I get on the dash loose cap but if I put a quarter of a tank nothing pops up but code 4055 now the next step I'm thinking leak detection pump would they give me a 4055 code if anyone knows of this issue can you please help thank you

[@matttorian]

if you have already done the gas cap and the purge valve with Oem quality parts the next step would be to smoke test the system to find your leak. you can buy a smoke tester for $50 or see a euro mechanic. good luck 👍🏼

[@user-sm3ho7nb2c]

@@matttorian I did a smoke test also and there is no leak

[@stringsnare]

Matt, I have an 07 rabbit. I have the codes 0171, 0507, 0442, 0456. They got triggered after changin spark plugs! I took it to a VW mechanic and paid for a diagnostic to 'confirm' it is the N80 & Valve Cover. However, he never did this pressure test you demonstrated here. Do you think it's worth replacing both parts anyway? Or maybe just go for the valve cover first?

[@matttorian]

You will need the valve cover for the lean fault and high idle fault. The PCV diagphram tears and sucks vacuum/ extra air into the motor causing it to have a lean mixture. The pcv is easy to diagnose there is a little vacuum port on the bottom of it and if you feel vacuum/ hear a leak from there the diagphram is torn and I would replace the whole valve cover with a OEM Vw valve cover. And for the evap leak faults I would do the purge valve. Both are common fixes on your engine. Good luck -Matt

[@stringsnare]

@@matttorian thanks so much for the thorough answer, your way of troubleshooting was very clear. Subbed!

[@72mossy]

Hi, I drive a 2007 1.6 Volkswagen jetta here in Ireland. I only bought it a couple of months ago. I have to top up the coolant every couple of week when it goes below the sensor. I can't see any apparent leaks and I've checked under oil cap and don't see any white or brown sludge. The car temperature runs fine at 90° but chugging idle even at ignition of car. Drives perfect though except for annoying screeching discs at rear. Any idea of coolant issue. I don't plan to do much with it as I bought it for a runaround for going to work.

[@matttorian]

Hi Mossy, cheers from California. We do not have the 1.6 liter engines here in America so Im not familiar with the common problems of that engine. I would take it to a mechanic and have the system pressure tested and have the whole system inspected. It is possible you have a slowly leaking head gasket if no external leaks are found. You could take out the spark plugs and look for evidence of coolant on one of the plugs. You can let it sit overnight and put a borescope in the cylinders and look for coolant puddling up on top of the pistons indicating a blown head gasket and internal leak. Fully inspect the coolant head flange and heater hoses and radiator side tank. Common sources. Look for pink crusty, that is dried coolant. Cheers Mate.

[@vw_2.5]

Po455 code hearing bang sounds from fuel tank area. Could this fix that? Turns on gas cap light to. Not sure what to do at this point.

[@matttorian]

You might have a bad leak detection pump, you need to smoke test the system for a large leak.

[@vw_2.5]

@@matttorian well this morning I went to gas station and it started boggin and code po101 came up and filled to a full tank car didn’t start cranked couple times still didn’t go and then cranked again with gas it started but dam i hit those rpms lol

[@matttorian]

@@vw_2.5 Replace your purge valve like this video shows and prob also change the mass air flow sensor. Clear faults and test drive it Good Luck

[@vw_2.5]

@@matttorian I changed the Maf 3 times already one with aftermarket which was a mistake and gave it more codes then I bought a new oem bosch one and fixed that. I bought a new purge just waiting for it to ship.

[@vw_2.5]

@@matttorian and thx lol

[@100sean1]

I have a p2188 code on my Volkswagen Passat 2013 same model engine like this one . It says system too rich at idle bank 1. Any ideas what it could be ? It don’t want to pass smog test

[@matttorian]

I would replace the Map sensor, clear faults and drive it. I have a MAP sensor video on my channel showing how to replace it

[@parmindersidhu9690]

Hi should i only change this if my check engine light has come up but i got the code p0441 but this was jus one of the symptoms the code can have i saw online

[@matttorian]

I would start with the purge valve and clear the faults and see what happens.

[@javiermedina6176]

Hello, you know where the VW Polo 2004 1.6 lt canister filter is located. Thank you

[@matttorian]

Most likely its in the right rear wheel liner near the fuel filler neck. But im not positive because we do not have Polos here in US!

[@aseaschonheim1841]

Hi, I have a problem with my 2012 Beetle 2.0 Turbo. The engine light and EPC light is on. The car is not driveable any more. The error codes are P0441, P0442, P2293 and P2015. Do you think replacing the purge valve can solve the problems?

[@matttorian]

Hello Asea, You have small evap leak large evap leak and the motor you have is not like this 2.5 motor purge valve. The purge valves on the 2.0T do not go bad. You most likely have a bad gas cap. Get a new factory Vw cap and clear the faults. For the fuel pressure fault, you might have a bad high pressure fuel pump. and for the intake manifold fault you will need to get a new intake manifold installed. This is a free repair at the dealer, take them the car with the intake fault and they will install a new intake, there is a warranty extension until 120,000 miles or 10 years on them. Also highly reccomenned to do intake valve carbon cleaning with the intake off. This should be a $250-300 extra charge for the valve cleaning. Good luck.

[@aseaschonheim1841]

@@matttorian Thank you very much. We already changed the fuel cap but the problems are still there. So you mean I can just go to a Volkswagen Dealer and the will replace the intake manifold for free?

[@matttorian]

@@aseaschonheim1841 Yes that is correct, its free at any Vw dealer. You might have a cracked charcoal canister if the car has ever been hit on the right rear. Its possible its the purge valve but its very rare. It could also be a leaking leak detection pump. Prob smoke test the entire evap system and have a qualified shop look at it. Make sure you are using a factory fuel cap also. good luck

[@sarthaksabbarwal71]

I've no light, but have a smell of gasoline inside the car's cabin. Could you help me with that, please?

[@matttorian]

I would start by pulling up the rear seat and fuel pump cover plate and inspect for fuel around the fuel pump. either the pump plastic is cracked and leaking or the fuel pump seal is torn or pinched. good luck

[@David-du6bf]

Hi Matt, I got a problem with my 2007 VW jetta 2.5 wolgsburg edition, the gas cap light on my dashboard and because of that the check engine light is on when the gas cap light goes off, I already replaced the gas cap, I bought a genuine gas cap, but after clear the codes and run the car for very few minutes the gas cap light come back on again and after goes off the check engine light is on again, please any suggestions or advice I will really appreciate it, the codes displayed in the scanner tool is 001090 EVAP Emission control system, small leak. Thanks for your help

[@matttorian]

David have you replaced the purge valve like the video shows?

[@David-du6bf]

Matt Torian yes, already did that, thanks for the video showing us how do it, and after that I clear the codes and run my car for just 15 minutes and the gas cap light backed on again, and then the check engine light, so I don’t know what could be, I have no clue , maybe the evap vacuum pump is damaged ?? Or the charcoal canister ?? I Sorry bother you again,

[@matttorian]

David did you use a factory Vw cap and a Bosch purge valve? Make sure you used good Oem parts and if so You will probably need to smoke test the system at this point to find the small leak. It could be a bad cap, bad purge valve or leak in the tank itself. Also pinched fuel pump seal is a possibility too.

[@David-du6bf]

Matt Torian please can you tell me where I can find the fuel pump in this particular car Jetta Wolfsburg edition ? Thanks Matt

[@matttorian]

David the fuel pump is under the rear seat bench. I would take it to a mechanic shop to have the system smoke tested at this point.

[@angelaymonique9020]

How much would this be to fix on a vw cc sport ?

[@matttorian]

Hi Angelay, the purge valve on CC rarely rarely goes bad. It will most likely be a leaking gas cap causing your evap fault. LMK if you need further assistance. Good luck

[@alfonsogonzalez2099]

Is this the code p0455?? Evaporative emission system leak detected??

[@matttorian]

Yes

[@David-du6bf]

Please Can you tell me the name of the piece that you changed? Thanks

[@matttorian]

Evap purge valve

[@David-du6bf]

Matt Torian I replaced the old gas cap for a new one (original one ) but I still have the same gas cap yellow light on my dashboard what else could be ??

[@vstabill36]

How many 2019+ 1.4L have you done? How's that location of it 😉

[@matttorian]

We have done a few of the 1.4T engine purge valves. Its fun, you have to pull the intake forward to get enough clearance to sneak it through.

[@vstabill36]

Video please 😁

[@daevid21]

Used side cutters to crimp the hose clamp ? wut and I’ll try this

[@dekorland182]

Is it the same for P0442?

[@matttorian]

dekorland182 yes P0442 small evap leak can definitely be caused by a bad purge valve

[@dekorland182]

Thanks sir , I fixed mi car , y replaced purge valve. Regards!

[@DigitalDissident]

+1