P0420 code fix PERMANENT, EASY, CHEAP

[@plutosforest]

I would not have found this solution in a million years if I kept searching for conventional wisdom on KZbin. You are the man! I'm going to try and address other causes of the code first, but regardless I appreciate someone who thinks outside the norm!

[@charlieeberhardt6026]

This tip "pulled my ass out of the fire." Back story: 10 months ago, my check-engine light comes on, code 420. This was a month before I had to have the 2-year emissions test. I didn't have the money. I ignored it. I got a letter from the DOT that my tags were suspended due to failure to get emissions tested. But when my tag stickers expired at the end of this year; I had to do something. This worked for me....got me through emission testing....worked great! 2004 Toyota Camry, 2.4 L, 220,000 miles. Note that in my state there is no visual inspection beyond looking at the under-carriage with a mirror on a rod. My new installation was shiny; I roughed up the spark-plug-non-foulers with 80 grit sandpaper, dipped them in bleach and let them sit in the sun. This helped "age" them and make the modification not so obvious. Good luck to all, and OP, thank you...you saved me. Edited to add: In my state, there is no tail-pipe test. They only hook their tester to the connector under your dash. When drilling out the anti-fouler, use lots of oil to lubricate....it'll help to stop the drill bit from biting in to the anti-fouler.

[@danielbargas3377]

Congrats, I’m glad to help anyone rip the system. Government gives people money that don’t deserve it and then takes the working middle class person who lives check to check and makes them try to spend their hard earned money for shit that doesn’t even benefit them, emissions is a scam in my book

[@armchairtin-kicker503]

Yes, I suppose bluing the anti-fouler parts would be a prudent move, keeping the "emissions modification" discrete. That stated, I went to a junkyard with the intention of picking up a used cat, for a sibiling, from a wrecked vehicle. The staff member informed me that it was against the law for them to sell cats. I told him, "some racket the state has setup." He nodded in acknowledgement.

[@marblox9300]

@@danielbargas3377 The entire O2 Sensor thing is a SCAM just to make huge money for the manufacturers. The air that we are breathing is NO DIFFERENT than it was in the 1960s when there were no catalytic converters. The manufacturers LOBBY the law makers to pass laws that FORCE you to buy THEIR expensive equipment. Believe me - those law makers could't care less about clean air. It's TRUE.!!!

[@cmongimme]

Did this on my 03 Avalanche, worked great for 4 years! But now I can afford to install new cats. Really helped me financially during tough years.

[@hpw-ws6bj]

Why bother with new cat? Just keep on saving by doing nothing.

[@AnythingEverythingGh]

Does it have any effect on MPG than the covenctional cats?

[@cmongimme]

@@AnythingEverythingGh well, would have to have at least a small affect because your vehicles computer is always watching the input from o2 sensors to adjust the air/fuel mixture to stay optimized as you drive. But I couldn't really tell a difference

[@AnythingEverythingGh]

@@cmongimme There is a notion that post 02's or rear 02's are used to check ONLY emissions with regards to cat performance whiles upstream is for fuel adjustments

[@cmongimme]

@@AnythingEverythingGh absolutely correct! And sorry but I added those years ago and couldn't actually remember if upstream or down stream but I remember now it was for code of cats, so obviously downstream

[@Aydinhamouni]

This is genius.. I was a little sceptical but tried on 2009 Hyundai Santa Fe with 175,000 miles. Next day, bammm monitors set and smog passed. Quick tip: I went to Lowe's and they drilled it for me so I didn't have to buy the drill bit. 😊😊😊

[@MajBoot]

I have a 2000 Honda Civic ex 1.6 liter.. bought for 600 bucks P0420 came up on scanner. Did this AND IT WORKED!!!!! DUDE THANK YOU SO VERY MUCH FOR SHARING THIS VIDEO!!!! YOU SAVED ME A BUNCH OF MONEY!!!!! And it was super easy!!! 🇺🇸🇺🇸🇺🇸🤘🏻🤘🏻🤘🏻🤘🏻

[@santinootero8270]

Code still offf?

[@bmore3401]

Legend has it he’s still finding ways around car codes as we speak.

[@tp6299]

🤭

[@keithmitchell99]

I wanted to personally thank you for posting this fix. my 1998 Toyota Avalon had been throwing the p0420 code. My local repair shop wanted to charge me $800 for a new cat.. I told them to go f*** themselves. I went to my local AutoZone and picked up those non fouler's and went to my Menards and picked up a $10 brand new bit and it took about 5 minutes to drill out the non fouler. it was a pain in the ass to remove the O2 sensor but once I got it out and put the non foulers there it passed emissions with flying colors.

[@danielbargas3377]

No problem and good luck, I have people who hate because "it's not good for the environment" and other bs but I'm glad I was able to help you

[@aros007z]

Thanks Daniel, you are helping many people who otherwise would not Be able to pay thousands for a simple fix, keep the videos coming, thanks Ignore the haters, peace.

[@danielbargas3377]

abe jams no problem just finished a k24a1 to k24a4 swap in a crv with a guide and how to video

[@bortustortus]

I have the exact same car and year, everything runs great but this cat. Glad to see it works on this car.

[@cynthiagonzalez4104]

After you did this, did you get the code? or was it gone?

[@pollosalgado3372]

Appreciate bro you saved my life,been trying to fix this code and after looked your video and try it just runs the truck for 150 miles and today pass the inspection sticker. (I tried after running for 70 miles and doesn't shows nothing so I have to running for 80 miles more and buala!!! Thank you so much to share this videos.

[@eddiemrfixit6832]

Daniel,Thanks for posting this fix. No more PO420 code. The hardest part was actually drilling out the anti foulers without ruining the threads. I have a Blazer that has 2 cats and they were plugged. A new factory set up was over 1000.00. So I delete the smaller cat and replaced the main one with an aftermarket. Issue was the 420 code was coming still. The anti fouler mod fixed it and I am a happy boy!

[@danielbargas3377]

Haha no problem just glad I can help others out who appreciate this and not just hate

[@wailoh4332]

Good video. Most people won’t do it because it involves getting their hands dirty. You’re surprisingly very accurate in your analysis and solution to the problem. The catalytic converter still doesn’t work but the computer will be fooled. I was almost tempted to try this a year ago because the converter and exhaust manifold is 3500 from Porsche. I just ended up fixing the old manifold by repairing the cracks. I works perfectly now.

[@marydistler5269]

This absolutely works! My check engine light (P0420 code) has been on for the last year and a half. My son put this on, we had the codes reset, drove the car for 100 miles and the check engine light never came back on. Got my emissions test today and I passed. Had tried putting all types of cleaners (seafoam, redline cleaner, Lucas fuel injector treatment) and none of them remediated the light. My son had to drill the hole a little larger than stated in the video to fit my O2 sensor and we added the steel wool as mentioned. I have a 2009 Nissan Altima with186000 miles and I passed emissions thanks to this!

[@santinootero8270]

Check engine light still off?

[@marydistler5269]

Light still off and car still passing emissions testing by state of Illinois

[@santinootero8270]

@@marydistler5269 shit I'm in Cali where they are hard asses about everything. Fingers crossed I will try it and keep you updated

[@santinootero8270]

So it passed emissions for me but now the light is back after a week .

[@Ant-uy3tu]

@@santinootero8270 I live in cali and need a smog too. Did u take it off or just left it on

[@enRBeezy]

Worked for me on a 2016 Honda Pilot. First reset your engine or unhook the battery. After that drive it for around 120-130 miles. The check engine light will come back on at 50 miles, but keep going to around 120-130 miles. Just passed smog. Thank you for this post

[@BlackFlagPrepper]

This WORKED FOR ME, THANK YOU! No errors after my trip to work today, everything is in the green. Now I can finally get this ridiculous inspection to pass!

[@santinootero8270]

Did you add steel wool?

[@marblox9300]

The entire O2 Sensor thing is a SCAM just to make huge money for the manufacturers. The air that we are breathing is NO DIFFERENT than it was in the 1960s when there were no catalytic converters. The manufacturers LOBBY the law makers to pass laws that FORCE you to buy THEIR expensive equipment. Believe me - those law makers could't care less about clean air. It's TRUE.!!!

[@rizato1]

Works great. No CEL now for over 1000 miles. No pending codes.

[@irishdenny17]

Sometimes ya gotta do what is necessary... An a "Good Evil Genius" is jus what we gotta have ta get the Job Done!!! Thank You Sir :)

[@machinist1337]

I can confirm m18 anti foulers drilled to 1/2" thru hole will clear p0420. Worked beautifully

[@santinootero8270]

Is your code still cleared?

[@machinist1337]

@@santinootero8270 yup

[@santinootero8270]

I did the trick and I passed emissions, but a week later the same code came back idk wtf .

[@TheWorkBench]

@@santinootero8270 Did you figure out what it was or another solution?

[@santinootero8270]

@@TheWorkBench I got it to clear again and it's been off since I added a little more steel wool on it , thank god it's good for now

[@Giminey]

I read about this procedure in a Miata forum. My buddy does not have money for a new cat so.. we will give this a try. Thanks Daniel

[@jaired8]

Yea both those dudes nailed it. Totally works. 2006 Subaru Impreza 2.5i . There is barely any of my cat left and this worked.

[@jaired8]

And let this be said. Not all states and counties have emission testing/requirements. So this is a great CHEAP way to deal with a trouble code.

[@kokaneeoutdoors358]

The other problem with that code is that many vehicle computers shut off the cruise control if that code shows up. If you drive a lot on the open highway (If there are any left) that is an important code to have eliminated.

[@SigXman]

I did this to my 2004 tundra in 2016. It is now 2020 with no problems. A bad CA cat. Works like a charm.

[@whitehistorymonth3563]

My cat seem to flow pretty freely on my 2001 Sequoia. But I'm getting this code. I guess they're just not efficient anymore. I spent $600 on some MagnaFlow Cats. Now I'm reading how they throw this code regardless with MagnaFlow cats. I think I'm going to return the cat tomorrow and just buy me some damn non fouler's LOL.

[@jimb2785]

Paying $1500 at the stealership doesn't HAVE TO BE the only answer. I was able to replace my Jetta cat with an aftermarket from Walker (about $100 back then) and it fixed the cat issue. Had a muffler shop weld it in for about $100 too. Worth looking into aftermarket converters to see if it will permanently and legally fix your problem.

[@jimmypage4162]

Give him a fucking break guys, he knows it's cutting a corner, we all know that. That's not the point. The point is to pass emissions for guys who can't afford to get a new cat. Great video man that's a very valuable trick that I will never forget. I can finally do a cat delete and not have to get expensive O2 sensor emulators!!! Thanks so much man!

[@danielbargas3377]

Dylan O'Connor thanks man I appreciate it, so much fucking hate on KZbin now days

[@57REDROOSTER]

Daniel Bargas some of us people dont have 2 nickels to rub together at times let alone big money quick... Cheap get by til money saved for a fix... haters want to hate... let them... when they get down to one ramen noodle soup in the cabinet and no money comming in or verry little then they will understand how you are HELPING us skate by cheep... good shit brother and my thanks

[@tubguy7099]

I'm all for this...do u think it will work on 2005 astro van downstream ? I can not go for catalytic conv. right now

[@poptrunkonu]

Dylan O'Connor amen brother I recently got the p0420 code and my cats cost $400 for a pair and I just going to try this method till I can save enough money to buy my new cats

[@roymg]

What if they read the pipe exhaust?

[@danielhorowitz9300]

I wanted to thank you personally for this video. I threw a permanent P0420 code , so no way was I going to pass smog. I followed your video instructions EXACTLY step by step. Used my OBD2 to clear the code....3 drive cycles later all modules closed and ready to test. Cleared emissions perfectly. I am so lucky I came across your vid. You saved me a few hundred dollars in parts and at least a full weekend's worth of work under the van... Many thanks!!!

[@danielbargas3377]

Daniel Horowitz no problem always glad to help

[@LuisGarcia-xv2bz]

Thanks bro!!! I did everything exactly how you explained and my light never came back on and I passed the retest here in Cali!

[@MunirTlich-ds8iz]

Hi there. After installing that part does the check engine light disapears by itself or you erase it ? How do you erase it ? thanks

[@bartberry4389]

06 Infiniti g35 with 240k miles.. WORKED LIKE A CHARM! Thanks man saved a grand$$$

[@Yuti23]

Hey buddy after 2 years did engine light turn on again? Or you have any problem..? Thanks

[@djlilbooduh]

It worked and passed my smog check in California. I have a 2001 Honda Civic LX. I changed both O2 sensors and still the P0420 code. Once I did this video fix I drove for 80 miles and it cleared the light. Went and smoged it and passed! Thanks Daniel!

[@Coach.Lewi.1979]

Dude. Your the man. Got the po420 code on my grand Vitara. Going to utilize this and another trick I've heard of to "clean out the cat."

[@spencersmith756]

Did it work?

[@Coach.Lewi.1979]

@@spencersmith756 I can't remember. It was a long time ago

[@houlagan13]

@@Coach.Lewi.1979 I’m sure you’d remember if you had to pay for a new cat

[@johndoes5643]

@@houlagan13 I 2nd that !

[@marcelocarrica2902]

Here on Maryland after reseting the light , I cranked engine and turn off at least 20 times , and immediately took for emissions , guess what ??? PASSSED my 2 cars , my daughter ,and a friend car !!! …..secret ??? So simple ! CYCLING KEY !!!

[@BalbinoArevalo-q5s]

hmmm you will break the starter.

[@christinaforbus9915]

Thank you!!! It worked! Had to use the steel wool because without it the light came back but the car just passed inspection!. YAY

[@ReneCruzATX]

DO THIS!!!! It worked for my 09 Honda Fit in Texas. Autozone or Advance Auto will loan you the sockets you need to get the sensor out safely. Thanks a ton Daniel!

[@wilfreddiazvellon7896]

Please guide me thru how did you by passed the computer making it think you still had a cat in. I have 2006 Honda Civic si

[@eljefe9997]

Wilfred Díaz Vellón I did it and passes.

[@nordicpride9708]

You don’t need a special wrench 🔧. A 22 mm open end box wrench works just fine 👍🏻

[@realjoeylara]

Thank you!!! It’s worked! Saved me time and money. Right when I needed to pass my test to renew my tags. 🙏🏻

[@gregbanter3022]

To bad you poor guys live in those ass hole liberal states “ f”””””””” global warming garbage “

[@reginalddunn6183]

@@gregbanter3022 shit I Love L.A.Cant beat the weather.In This liberal state.Those so called conservative,states have their own set of problems too.Good ol boys And Gals.

[@paididoy]

@@reginalddunn6183, you're talking nonsense.

[@scottcarney6333]

My '99 cr-v was a phone call away from the scrap yard... serious lack of power, engine light always on (p0420) and could barely go over 35mph (downhill with a tailwind). I knocked out the front cake of catalyst, which was really plugged up, soaked the rear cake of the catalyst in soapy water and used this little trick on the downstream CO2 sensor... just took a test drive and the thing is running better than ever before. Thank you for sharing. :)

[@danielbargas3377]

Scott Carney no problem glad I can keep another car running

[@michaelt9558]

Got the same code for my 07 accord. Did the same and it cleared the check engine light. Thanks for the info man. Saved me several hundred dollars on a catalytic converter. 🤙

[@reneescarcega7263]

Is the 4 cyl or the 6cyl? Where you put them at? The 6 cyl has 3 cats

[@Dangbo3030]

@@reneescarcega7263 , down stream, after the cat.

[@santinootero8270]

Did your code stay off 2 years later?

[@michaelt9558]

@@santinootero8270 if I can recall it came back on so I went ahead and purchased an o2 sensor to replaced bad one and no check engine light to this day

[@santinootero8270]

Upstream or downstream o2 sensor?

[@SmallEngineRepairGuy]

This 100% worked on my 2003 Honda Element Just passed CA Emissions test. BTW drilling the metal non foulers is a lot easier with it clamped a drill press and a stepped drill(Unibit)

[@mstrkrft4336]

SmallEngineRepairGuy uninitiated is the best way

[@mstrkrft4336]

Unibit

[@santinootero8270]

Did you have to use the steel wool? I just used it on my 05 accord and haven't got the code but the catalytic monitor mil is still flashing and not ready on my obd.

[@Svmbah]

just did this and passed smog thank you. If you guys still have the check engine light on take off the negative terminal, drive it around for 60 miles and then go 55mph for 5 mins to reset the catalyst incomplete code.

[@eddielyons353]

It works!!! 2008 lacrosse with the 3.8 Holy crap! I guess it makes sense. Your makin an o2 storage chamber. I didn’t even mess around, I put a little bit of copper or brass from a pot scrubber inside and lookin at the scan data shows it store huge amounts of o2 vs how it was before. Good on ya mate!

[@danielbargas3377]

No problem glad to help out

[@MJM442]

you should be called the one-handed mechanic lol

[@ricerocket1985]

It's a lefty thing. You wouldn't understand

[@Rabbit.760]

@@ricerocket1985 dominant hand usually holds the camera... at least in my case

[@rebekahtaylor2477]

I'm quite my car does not need a Catalyst Converter. That PO420 reads Catalyst System Low Efficiency (Bank 1). The car was fine all winter. I'm going to try this, I believe what you described is the problem. Everything else has been changed.

[@sidarior3814]

Agree that engine Light it doesn’t come out but if you’re in ca it doesn’t pass the smog I experienced that

[@billyazprospector]

Just did this for my 04 Jeep GC and worked liked a charm. Now it was raining and they didn’t inspect underneath the car like they normally do or I think they could have seen it, but anyway it passed and thank you!!

[@danielfiore8865]

They'll getcha

[@JoseFlores-kg9je]

This will also work if you have an aftermarket high flow catalytic converter or straight pipe installed.

[@carlschnackel3051]

I'm going to try the "cat clean" stuff first, with some '91' gas. If that doesn't do the trick, I'll be under the car getting this trick done. I thank you for this info. Getting the codes cleared and getting the inspection done is a big hurdle for those of us who don't have a fortune to blow, and I know I'm not the only one who appreciates it.

[@lewlater2435]

Any luck??

[@johndoes5643]

@@lewlater2435 I'm wondering too !

[@johndoes5643]

Carl Schnackel any luck ?

[@carlschnackel3051]

@@johndoes5643 oh yeah. Sorry. The cat clean worked good. For me, at least

[@dscopes]

“So it can’t sense sh&$!” Lol. Like your style brother.

[@giovannyluque6034]

should i put both nonfoulers or one

[@tuck893]

He raised my anxiety level with the one-handed video shaking, but I'm gonna try it.

[@mikemanley9413]

Thank you for showing this video. I am one of the guys that can't afford a new catalytic converter, so I am going to give this a shot. Why not. Right?? I hope it works for me. I will let you all know if it does!!!

[@Samuelfish2k]

Mike Manley Did it work?

[@unwinjay7979]

Did it work?

[@jeffhicks1008]

Young man if you still monitor this video, thank you it worked.

[@mr.g9756]

Jeff Hicks what kind of vehicle did it work on for you.

[@Ytmy2sense]

OBD2 code p0420 doesn't necessarily mean your catalytic converter is bad. Actually your cat should never go bad and should last the lifetime of the engine. The only reason they ever need to be replaced is because there's a problem. Even if 🐈 is internally FUBAR, (clogged) you can just gut the 🐈 and weld it back on. This way is probably much easier but I sometimes you got to do things the hard way. LOL good stuff BTW

[@marblox9300]

Catalytic Converters last the life of the car - that is until it is stolen off the car.

[@groutbrook]

I tried your method to troubleshoot if the CC was my problem. On a 2001 Chevy Express van the O2 sensor is too big to fit into the non-fouler coupling, even after being drilled out with a 1/2 bit. Even if it had fit, there wouldn't be room to screw it in because the CC is too close to the frame. This is for anyone trying your method on this model vehicle, and thank you for posting this video.

[@keithsheaffer3027]

I have 1995 nissan altima. The 42002 none fouler is to big its 18mm what size works for this car

[@brentholtry5849]

This worked on my, err, a friend of mine, 04 Honda Civic. Saved my...err, his a$$. Thanks Daniel.

[@mrbriceno3949]

Glad you fixed your honda brent

[@adangochez8400]

Hey 👋🏻 bro thx a lot I just did on my 2002 Toyota Celica and it worked for me my car passed the emissions test thanks 🙏 to you bro I would invite you to eat lunch thanks a lot for your help bro

[@donrobinson5662]

The bottom line is this fix works!!!...Great job dude!!

[@playdatbeatboy5605]

Will the check engine light go away to?

[@jedinitedj8926]

It works! 2002 Rsx Type S owner right here, did this exat trick, reset the codes and passed smog! nice video!

[@santinootero8270]

Did your code come back on?

[@jedinitedj8926]

@@santinootero8270 not for the 02 sensor no.

[@santinootero8270]

@@jedinitedj8926 so the code p0420 came back?

[@santinootero8270]

@@jedinitedj8926 I did this trick, it passed emissions for me which I'm thankful for, but a week later I'm omw to work and the same code popped up like wtf.

[@jedinitedj8926]

@@santinootero8270 i guess every car is different. possibly the sensor is completey shot.

[@mikeg412]

This worked on my gmc terrain. Thanks dude!

[@me_TJ_MrB]

That's exactly what I was hoping. I just bought a 2014 and I've had it a week and the check engine light came on. I scanned it and it came up P0420. I was so mad because I paid cash for it and figured it was something bad. There are no symptoms that anything is wrong, but thanks to you I'm going to go ahead and try this. Thanks for taking the time and posting that it works on the Train.

[@johnfinch9407]

Where was the sensor located? On top of the engine near the cabin or under the car? Haven’t looked yet just curious. I have a terrain as well.

[@robertdobson6951]

This really works. I have a 2001 gmc sierra and I tried it. I figured I had nothing to lose. I tried it and the monitors ran. I went and it passed emission with no problem. Ps it only cost me 5 dollars because I had the drill bit

[@alb12345672]

Its bs because in NY they can charge you 400 to "attempt a repair" and you pass, and if the conditions are right you can certainly pass with p0420. Just set every other monitor. If you get to the shop before the next drive cycle finishes you pass.

[@stevemiddleton7034]

Very interesting; I've seen this done on vehicles that were being experimented on with a brown's gas kit in order to fool the computer. One thing to bear in mind - the problem could be a plugged up catalytic converter, and fooling the computer to pass emissions inspection won't prevent it from ruining the engine.

[@youtubeisbroken241]

Ruining is a strong word. A clogged cat, even a severely clogged one, should only affect performance of the engine. In an extreme case, one could argue higher temperatures developing for the exhaust valves. But that would likely only happen after years of being clogged. I have seen that with crushed tail pipes. But that’s a major restriction compared to a clogged cat

[@张驰-w1e]

maybe it will lead the cylinder misfire

[@dieseldawg7132]

@@youtubeisbroken241 high exhaust pressures can definitely ruin an engine seen it over heat Diesel engines and cars

[@pttpkiba8041]

It worked on my 2009 Buick Lucerne I just won from an auction! Laquer thinner didn't work, sea foam didn't work either. Thank you!

[@kenchanski3849]

great video, some folks without the resources to outlay that much money to replace a catalytic (which by the way should outlast the life of the car, it is made of stainless steel). Great way to keep the car on the road allow those folk to get to work... etc.. thank you for this video.

[@Antoniosworld45]

05 silverado 2500hd catalyst converter low efficiency (bank 1) so i did this and reset my codes and worked like a charm. Mine was after the CC on drivers side. Thank you. This came up as soon as i bought my truck and i got worried.

[@robertowens9979]

Antonio did it pass smog? and did you do it exactly as the video shows ?

[@Antoniosworld45]

It did work exactly how the video described my code went away nomore code. And we have no smog test here in texas

[@austinmueller8094]

"Dont cram it in there so it can't sense shit" 😂🤣 haha had me busting up. Nice thorough video on how to escape the nightmare of not being able to pass smog.

[@emericaman16]

I just tried this on my 2002 Toyota Camry and it worked. Installed it and disconnected the battery for a few minutes to clear the code. When I started it afterwards the engine was dying and bogging out at idle. Was able to drive around for 10 minutes and then it ran fine. Passed Illinois emissions test today 5/17. $7 fix as opposed to $1200 for Midas to replace the catalytic converter. Thanks mate!!

[@DSC800]

For those complaining that this causes smog, you have a point, but it's not as bad as you think. The CEL comes on when the cat drops to 95% efficiency which is a pretty high threshold. Spacing the O2 sensor back might stretch it to 90%, so just a little more smog in the air, not like it's a 1970's polluter. If you do this hack and it doesn't work, you've got other problems, a vacuum leak, leaky injector, bad coil, up to and including replacing the cat.

[@stephenpowell6001]

A bad ignition coil was to blame for me. Cylinder misfire sends unburned fuel/air mixture right on to the cat. Coating it, making it less efficient. I am going to try cataclean, 91-93 octane gas, and a long trip on the interstate. If that don't work, I will try the oven cleaner in the O2 port hole. Then the spacers if them don't work. Before I buy a new cat.

[@jrparadise7765]

@@stephenpowell6001 look into seafoam into the 1st o2 sensor hole replace sensor back into hole and run..be sure its outside cause its gonna smoke...you can look up a video on it

[@marblox9300]

The entire O2 Sensor thing is a SCAM just to make huge money for the manufacturers. The air that we are breathing is NO DIFFERENT than it was in the 1960s when there were no catalytic converters. The manufacturers LOBBY the law makers to pass laws that FORCE you to buy THEIR expensive equipment. Believe me - those law makers could't care less about clean air. It's TRUE.!!!

[@mrdysfunctional4040]

Just did this 12 GMC terrian. And it clears my issued up. I had to use the steel wool. But have no issues now.

[@PittsburghRonin]

Will it pass the visual anti-tampering requirement?

[@andrewfaber9014]

Never. 😂 If they look, you'll have to solder a resistor and cap into the wiring and electrical wrap it up if you want to pass a visual.

[@chente8318]

for your trick worked on my vehicle. so thank you it is much easier than doing what I would do to fix it. and no I wouldn't wash it cuz that's not my issue my Cadillac converter is good it just needs to be rewrapped and to do that you gotta take everything off which I would do once I have more time that is a long process. so thank you once again.

[@danielbargas3377]

I'm not from Cali so I couldn't say but I don't see why they would and if they do just go to another service shop, some places are way more particular than others so look for a just basic corner shop not some place that's going to do some crazy 400 point inspection

[@grayeagle1000]

Nope, the machine catches the code not the mechanic and his leniency. They all use the same machines for state inspections.

[@danielfiore8865]

Basic corner shop... thats also certified by the state of CA and subject to fines and penalties, including jail or prison. They are pretty rare these days.

[@samuelwalker1178]

It works I have a 05 taurus with 4 02 sencors did both downstream and passed today

[@danielbargas3377]

Sweet!

[@rixjundi]

Brilliant!! $6.29 screws the dealer/ manufacturer. Thanks! p.s. I don't think you need to drill the spacers on German cars.

[@danielbargas3377]

Haha no problem, not sure about German cars, drilling the spacer is required depending on o2 probe length, for the 10 or so cars I did it on I had to drill them all out

[@davidscontent8221]

I have a vw golf , would I need to was the drill on the spacers ?

[@nat2ralelements96]

Thanks so much it really worked. Just passed today.

[@eliseo3500]

Dude I passed emissions!!! Thanks

[@noplacate]

I have a 2010 BMW X5 throwing this code. Why are you putting both non-foulers on? I've seen other videos using just one.

[@jazzmonstr]

This worked on my 1996 Blazer today. Thanks Daniel!

[@Zx14rrrrrrrrrrr]

Still good?

[@youtubeisbroken241]

Still working? It’s impossible to know in one day if a fix like this was successful. It usually takes 60-100 miles for the sensor to trigger a cel after you clear it out

[@Zx14rrrrrrrrrrr]

@@youtubeisbroken241 I know. Most people say it came back after a few days. But I can't get any answers from people that say it worked lol. So now that it's getting cold I will give this a shot.

[@DNMEBOY]

spafro101 I removed my o2 sensor and sprayed half a can of seafoam in and then replaced the sensor and ran my car outdoors till the smoke stopped. Not only is my code gone but the car doesn’t stink when I get on the thruway like it used to and i gained some power back. Sounds like a better fix than this. This is just tricking the computer and does nothing to get fix the reason it threw the code. It should keep the code away though if all you need is to pass inspection. I had the option of trying this but decided to try cleaning the cats with sea foam and I’m glad I did because my engine runs much better.

[@mrdeanv4414]

Great video and very informative 👍🏻..! So on a 95 Vette I would need 2 packs of the Spark plug Foulers because the car has dual exhaust and a O2 sensor on each side... Right?

[@jalesaucedo]

Thank you....Saved me hundreds of dollars. Honda Civic

[@georgefelix7906]

Nice video , I did it in my 2007 nissan altima and get much better gas millage , before the extension 315 miles with full gas tank , after , 410 miles with full gas tank

[@danielbargas3377]

Glad to hear, actually it doesn't improve gas mileage it restores it, gas mileage drops when a engine is in limp mode running extra rich to avoid potential damage, it you turn the light off wallah factory gas mileage is restored. Anyway glad to hear you had success

[@garymiller2056]

Check your fuel trims, George, to make sure it isn't running lean. That would be bad. What was your mileage before light on??

[@rafaelrodriguez3880]

Thanks man I did this to my Audi you save me $3,000

[@davidaltlsqofy337]

Did it work?

[@felicitascervantes2974]

What model

[@felicitascervantes2974]

What size

[@juanflores4871]

Va colocando aguas arriba ? Antes del catalizador O aguas abajo? Gracias y Saludos

[@rebelreloading5265]

Your doing mankind a service Sir, thank you

[@marblox9300]

The entire O2 Sensor thing is a SCAM just to make huge money for the manufacturers. The air that we are breathing is NO DIFFERENT than it was in the 1960s when there were no catalytic converters. The manufacturers LOBBY the law makers to pass laws that FORCE you to buy THEIR expensive equipment. Believe me - those law makers could't care less about clean air. It's TRUE.!!!

[@pokemonisthebestlike1m654]

Thank you for your reply. Just want to make sure, is it the one connected to the shift gear module??

[@Wedoitalltohelp]

THIS IS AWESOME!! Did it on a 2007 Pontiac G6.. Thanks!!

[@MrGaryStaples]

This trick worked for me. 2000 Honda Insight. I still plan on replacing the catalytic converter because emissions do cause health problems in congested areas. It was a pain keeping the washer from falling on the threads when I put it in the cat so I put a wire twist tie around it and tightened a rubber band around the trailing wire. Then made sure to take the twisty tie and the rubber band off so it wouldn't burn up.

[@marblox9300]

The entire O2 Sensor thing is a SCAM just to make huge money for the manufacturers. The air that we are breathing is NO DIFFERENT than it was in the 1960s when there were no catalytic converters. The manufacturers LOBBY the law makers to pass laws that FORCE you to buy THEIR expensive equipment. Believe me - those law makers could't care less about clean air. It's TRUE.!!!

[@neilwilliams5814]

You do not need steel wool. Awesome video. Thanks a lot.

[@JPtruthvalueseek]

I was wondering about the steel wool, thanks for this comment 🙌

[@bassforkids4504]

Lately I've only been driving my 2007 Ford Freestar about 25 miles a week.Check engine light came on one day and showing a PO420 code.Decided to try cataclean first so spent a couple days running the gas down to 1/4 tank,putting about 100 miles on it.Check engine light went off on it's own with no cataclean.

[@mb1636]

Did cataclean worked to clear the p0420 code after adding it?

[@bassforkids4504]

No it did not work.Check engine light still on.

[@Zx14rrrrrrrrrrr]

Drill a nice hole through the catalyst. Then do this. That way you're letting the exhaust work if the cat is clogged. And no code.

[@2paulm]

p0420 is not a clogged cat

[@Greenday1827]

It often times is in fact a clogged cat. I know this because it happened with mine.

[@britfliptop]

Great video now it would be really something to see you rebuild the transmission...With one hand !

[@stevengarrad4725]

That's a good one Sincerely, ozone layer

[@rokitman5753]

Who gives a shit do what it takes to keep cel off

[@stevengarrad4725]

@@rokitman5753 did you not read the comment ur replying too

[@stevengarrad4725]

You must think the ozone layer is a smart ass

[@maineprophetic9272]

Hmm let's see.. use this guy's video and about 8 bucks to quick fix my car so I can get to work and not loose my job that helps me raise my 2 kids because my husband left me to go "persue" his early years and lost child support fight with him and he TOOK the car with NO p0420 issues or wait for the Ozone layer to give me 1,400.00 large to fix the issue. Wow! Life decisions are sooo hard lol. Great vid dude tks

[@nordicpride9708]

The cat is still working at 90% efficiency when the P0420 is tripped so virtue signaling about the ozone layer really is absurd

[@ragnarodinson8319]

Righteous video bro thank you. I saw a guy on here that was going to spend his customer's money on new spark plugs saying that the spark plugs were burning too hot because they're old one idiot I'm sure that your video will help me get through this 420 code.

[@AW-xv7dq]

U sir are doing gods work ! LOL! Thanks for the how to and very well explained! LOVE IT!

[@brandonwb24]

It works. Use a 1/2” drill bit to drill center out, code went from perm to pending, then gone. Only one needed…

[@neilwilliams5814]

How do you know what foul plug to get? Awesome video. Thanks a lot.

[@elydiaz1031]

Neil Williams he says the product part # (ending in 0009) n the size is 14mm.... hope it helps

[@jjoeyoky62575]

T

[@briansansone]

It worked for my 01 4.3L . But..... the 1/2" drill bit did not work. I had to get a 32nd" larger, and use a drill press to drill it out, leaving the wall of the adapter very very thin. So far so good though. In Atlanta, there is a serious debate about ending the emissions testing requirements. Only 4% ( as per a news cast I saw) of vehicles fail emissions, and our air is cleaner now than when there were far fewer cars on the road in the past. The old saying "they dont build them like they used to " does not hold totally true anymore. "They" are built better, cleaner, and more efficient than ever. Tax hawk groups are claiming the whole system is just a cash cow now, and has basically no effect on air quality. I would not be surprised if emissions requirements are ended here in metro Atlanta, and maybe other cities can follow.

[@stevebigler]

Do they sell tripods where you live?

[@michaelseverance6837]

OHHHHHHHHH

[@richardharris5819]

Just because you have a dick doesn't neam you have to act like one... LOL

[@121gigawatts_]

its called a spacer, you can get them on amazon for cheap. however, in california, it wont pass vehicle visual inspection. any smog shop that overlooks is putting their license/business on the line. good luck.

[@salv2821]

It depends where you are where I’m at this process cost me 3 dollars the actual spacer cost 30 dollars where I’m at. Definitely worth it for me.

[@scurvyswine]

One of the few times 420 is a bummer.

[@MajBoot]

scurvyswine TOTALLY!!! Hahahahahaha

[@jonnymowery1906]

Ayeeee🔥

[@robertottoway4328]

i got a bosch to fit - had to cut the little cup off the end but i got it to work. the chinese o2 sensors were giving me a p0054 code along with the p420 code. bosch sensor and the spark plug fouler ($8.51) fix and my 2006 pontiac torrent passed emissions here in phx, az!!! :) 12.23.2021

[@OneworldKW]

Is this valid for CA or NY? Godd video

[@timbonham2074]

11/13/21 My 2005 Lexus GX with 325K Miles failed smog on 11/11/21 then went and did this exact process and the codes cleared after I completed a drive cycle as well on 11/13/21. Good luck.

[@modernvintagelifestyles]

You should do a video on a fix for the focus on your camera.

[@Zx14rrrrrrrrrrr]

😁

[@perecarl12]

Just did this fix and erased the code. I used Freeze-Off (by CRC) instead of PB blaster and it came loose. I tried removing it last year with liquid wrench and no luck. Keeping my fingers crossed in the next few days hoping the code does not return. Thanks for video!

[@nordicpride9708]

A good dealership trick… soak the o2 threads in brake fluid. Best stuff you will ever use. Makes PB blaster look like child’s play

[@FR-vc1lb]

Daniel good Video :) when u say the last O2 sensor from your exhaust sys. Is it the one closes to the rear of the vehicle ? By the muffler ?

[@danielbargas3377]

Yes

[@plastite]

Just got my 05 Saturn ion to pass e test today. I could only use one spacer as there is not enough space for 2. I drilled it almost all the way through. The hole in the end is still small. Put it in the rear most O2 sensor . I believe my cat is marginal. Car runs great and is still good on gas. thanks Dan

[@danielbargas3377]

No problem best of luck

[@gertis7420]

what about when the car is visually inspected? you can not have any mods on the emission system in order to pass, at least in california.

[@wormraper]

that's because CA is insane. down here in AZ and most other states they just plug the machine into the OBD II port and if it doesn't throw any codes they pass you through. they don't visually inspect shit around here

[@Rabbit.760]

Ya California loves failing... everything

[@pokemonisthebestlike1m654]

Hi, I'm sorry to bother you but I was wondering if you would help me with a question. I have a 2005 scion and I am not sure which of the plugs is it. Will it be the one on top or the one connected to the catalyst? Please advise. Thank you in advance for your time.

[@danielbargas3377]

The second one that’s behind the catalyst, furthest from the engine

[@pokemonisthebestlike1m654]

​@@danielbargas3377Thank you for your reply. Just want to make sure, is it the one connected to the shift gear module??