worked on my friends 2002 chevy tahoe. he was about to buy a new car since he wasn't willing to spend that much on replacing the cats. i told him to put a gallon of lacquer thinner when you have half a tank. after it went thru he filled it up tank. about 3/4 tank the light went off and was able to pass smog the next month. still driving to this day. its been about 8mos
@DEATHWISHVQ5 ай бұрын
It’s amazing how people think spending $5000 (educated guess) on a new old car, to avoid replacing a $250 part. It’s like saying oh shit my car needs new tires fuck that’s gonna be 600 lemme buy a new car.
@stackinpaper5 ай бұрын
@@DEATHWISHVQ right?!? There are people out there that just get bored of their car so anything that goes wrong with it is an excuse to buy a new one. My niece did that. Headlights worn and dim and told us it’s a safety issue. I found a pair of new headlights on Amazon $500 and said I would replace them if she ordered them. A week later she pulls up in a new car smh
@rine4134 ай бұрын
@@DEATHWISHVQit’s 276 for my front one and 395 for my rear one. Not sure I trust going this route cause I don’t wanna fuck shit up more, but I get why people do it. They think the car is becoming a money pit.
@Doomed3000 Жыл бұрын
Just because you have a code for catalyst efficiency does not mean that the cat is clogged. The downstream or upstream 02 sensors could be reading incorrectly. The cat could be overhead, or it could have hot or cold spots. If the cat is clogged, it needs to be replaced. You won't fix it by pouring stuff in your fuel tank, and you could cause damage to components in your fuel system. The best way to diagnose a cat issue is to graph the 02 sensor voltages. The upstream or before cat sensors should switch back and forth quickly from .1 volts to .9 volts. The downstream sensors should stay at about .45 to .5 volts and not switch. If the downstream sensors are switching like the upstream sensors, it is a good sign that the cat is not working and needs to be replaced. If the upstream is not switching, it is most likely a sensor. A thermal imaging camera can also help to find hot spots or a clogged cat. The outlet side of the cat should be hoter than the inlet. If it's not, the cat is most likely not working. If there are hot spots, it indicates the cat is clogged at that spot. Hopefully this is helpful.
@JLAGAN49 Жыл бұрын
450 millivolts not 4.5 volts!!!!!!
@Doomed3000 Жыл бұрын
@@JLAGAN49 Thanks for correcting my mistake!
@dashonh1214 Жыл бұрын
Lol I swear it’s just Toyota things especially in gs’s
@staydownkillen2087 Жыл бұрын
Af sensor voltage for this year is supposed to stay a bit about 3. This is a wide band sensor not a narrow band. Don’t throw out false info to everyone, it can confuse a lot of people
@Krankie_V Жыл бұрын
This toyota has an afr sensor upstream not a regular o2
@ron8935 Жыл бұрын
It's done by rinsing out the catalytic converter in a lacquer thinner bath..... And it works great....
@Mirici18 ай бұрын
The people putting random chemicals down their gas tank are insane. You can damage o rings and components
@ozb106 ай бұрын
@@Mirici1have you heard of lacquer thinner causing that?
@JohnSmith-xx1lx5 ай бұрын
He said BATH PAY Attention.@@Mirici1
@keebler_1378 ай бұрын
When using thinner, you should drive for 150+ miles trying to keep rpm around 2500-3000 to burn out impurities and clean it
@carlgauthier721910 ай бұрын
Remove the cat , put it in a bucket with caustic soda , put a lid , add boiling water , close the lid , leave it here 2 days , brand new nanocoated cat 🐈⬛
@electric86683 ай бұрын
Should have only had half a tank to start.
@pontiffury9451 Жыл бұрын
You're supposed to drive for a few hundred miles before determining if it helped or not
@anilwallace50809 ай бұрын
He drove a entire tank in a toyota. Probably drove 400 miles or so
@SuperJ2139 ай бұрын
@@anilwallace5080 He drove 18 miles and reported. He needs to run the gas tank down. Ideally, he would report after filling up again, provide a report, and then give us updates after a few tanks.
@michaeleckhart86578 ай бұрын
He added much fuel. His ratio was off.
@outdoor0447 ай бұрын
@@SuperJ213Running the tank empty only mattered when there was a good ratio of thinner in the tank to clean the cat. Running the next tank down isn't doing anything to help. The first tank that he ran empty took him 177 miles which seems really low. I've heard 300 miles is needed, so what that means is he maybe should have tried another tank with thinner after the first time and get more miles with the cleaning solution. Who knows, this solution is hit and miss for people. Mostly miss from what I've seen. I would try it though before spending big money on an old car.
@frederickpauly25867 ай бұрын
@anilwallace5080 half tank to 1 gallon of thinner. He used a full tank. He should of used 2 gallons of thinner for a full tank
@christerry34323 ай бұрын
Take off the upstreaknoxygen sensor that's on your exhaust manifold. Spray the seafoam spray into and down the manifold. Let it sit for at least 20 minutes and it will do the trick
@jalil23522 ай бұрын
How has this faired for you so far? I'm curious to do this.
@christerry34322 ай бұрын
@@jalil2352 I've met a lot of mechanics that do this and have been successful
@KollynJ2 ай бұрын
Has this been successful for a lot of people and is im assuming it’s a somewhat temporary solution
@anthonyvarzino1094 Жыл бұрын
This trick got my Corolla through inspection for three years. It would keep the light off for about half a day lol
@OLIVER949OC2 Жыл бұрын
Its like beating the drug test 😂
@jdwool083 ай бұрын
Sounds like a great loop hole.
@craigkeller5 ай бұрын
Additive by the name of Cataclean worked for our Mercedes. 30$ or so at NAPA.
@Lex-cm9dw Жыл бұрын
It’s probably an o2 sensor. Common issue on Toyotas.
@bluor3713 Жыл бұрын
That's what it was on my Honda.
@BillyBob-op6lg8 ай бұрын
That throws a different code
@MarkHorn-td9mh2 ай бұрын
I'd say p0420 converter efficiency is just about as common as Toyota A/F sensor fault
@onthetarmacinc.42109 ай бұрын
Scotty Kilmer
@Acanofalconpunch Жыл бұрын
Remove the O2 sensors from your catalytic converters and pour it down that way it worked for me.
@sterlingwitherspoon57098 ай бұрын
Ain't no way lol😂
@BRANDONGONE925 ай бұрын
How long did you let it sit there before you started it ?
@timin7704 ай бұрын
Sounds like a recipe for a car bomb
@bugayev2 ай бұрын
VERTIRLO POR EL AGUJERO DEL SENSOR DE OXÍGENO? BUENA IDEA
@johnbelwell24615 ай бұрын
I've used lacquer thinner (toluene) as cheap gas substitute in many vehicles and i can assure you it burns cleaner than the gas mix (gas also contains toluene) has more octanes causes no damage and cleans carbon, only objection is i haven't used it long enough to check for dry hoses etc and in unadjusted carbureted bikes it's hard as heck to start in a cold morning, fuel injection adjusts its self with no problems. Not sure if it helps with cats but toluene exhaust gases passing through cats are no different than gasoline ones it might just burn cleaner and trick o2 sensors.
@Krankie_V Жыл бұрын
Try replacing the air fuel ratio sensor and the downstream oxygen sensor, with OE parts, before just assuming it's a bad cat. Even if replacing the sensors does not fix the issue, they should be replaced along with the cat anyway
@harms5846 Жыл бұрын
Try blowing the car up, should fix the check engine light being on
@Micheal1075 Жыл бұрын
Horrible advice, the light is glowing brighter than ever
@ralanham76 Жыл бұрын
The check engine light never goes away on Toyota, but you can keep driving it anyways.
@timmusician5060 Жыл бұрын
I thought you were going to say to blow into it like a Nintendo cartridge 😐
@Dansk5511 ай бұрын
@@Micheal1075 😂
@A_Cowboy_called_JackRabbit9 ай бұрын
@@timmusician5060 I tried that too. Now my car won't start at all.
@joerivera45 Жыл бұрын
Put a drilled out spark plug spacer on the down stream 02 clear it and run it.. see what happen oh Napa or autozone advanced auto has the spacers you need
@MakeItWithCalvin Жыл бұрын
My 96 Civic cleared Cali SMOG with flying colors but 3 months later gave me a similar "catalyst below efficiency threshold." 2x new O2 sensors later, it runs just fine! I am with the crowd saying it is more likely than not that the oxygen sensors are misreading due to age than the actual cat being bad. Also, I feel like a lot of these "cleaners" may work for a slightly dirty one, but if it is just coked up like crazy, no amount of cleaner will solve that!
@HugoStiglitz894 ай бұрын
You drove 30 miles 😂 try using the whole tank
@L2design3 ай бұрын
OMGGG 2001 FORD EXPLORER PUT 1 GALLON LAQUER THINNER AND SEAFOAM AND 2 CAT CLEANERS IN 1/4 TANK... IT WORKS BABY!!! I CAN GO UP THE HILL NOW...AND MY GAS MILEAGE WENT UP FROM 12 TO 13 MILES PER GALLON. YIPEEEEE ORDERED TWO O2 SENSORS AND WILL SEE IF I PASS SMOG IN A WEEK THANK YOU MR KILMER YOU SAVED ME $2000
@jacquesunu11 ай бұрын
I have tried it many time and it does work .Run the car some more .
@elmerfisher10507 ай бұрын
It does so work, you diluted it too much, we tried it on a 2008 Dodge Caravan, 1 gallon to half a tank and it worked, however you have to get the smog test as soon as the light goes out because it may come back on in a few days
@professionalbaddass8 ай бұрын
1 gallon thinner to 4 gallons fuel..worked great so far 05 honda 314000 miles
@wilyceyote Жыл бұрын
I did it to my 2000 Mazda protégé I only put 5 gallons to 1 gallon of lacquer thinner then drove it The Code 420 went away
@homeguardster6 ай бұрын
update?
@wilyceyote6 ай бұрын
@@homeguardster has not came back on either for over eight months now
@jonathanmilland2867 Жыл бұрын
Worked for my '13 accord twice. First time was at 30k miles and second was at 190k
@rolls_8798 Жыл бұрын
damn, I know Hondas are supposed to last a while, but you've been rocking one from the 1300s?
@toob247 Жыл бұрын
30k miles? The cat wasn't bad. Mayne a bum o2 sensor. Burnt fumes don't clean anything.
@jonathanmilland2867 Жыл бұрын
Still have original sensors installed
@jonathanmilland2867 Жыл бұрын
@@rolls_8798 nice pickup
@michaelknight1980 Жыл бұрын
Did you put it with a full tank? I would think less gas would be more concentrated
@Mxcarnivoro5 ай бұрын
It worked on my 2008 expedition EL. 1 gallon of laquer thinner for 10 gallons of gas. Codes cleared
@buddymac783 ай бұрын
I am a Skeptic at heart but tried LT at 1/2 tank in my 2.4 Camry and it cleaned a blocked Cat. Drove it 100 Miles the Code was Gone. Passed CA smog the Same Day…
@christianlail72665 ай бұрын
Test for back pressure. Cheap harbor freight fuel tester will do. If no back pressure add a spark plug defouler on the end of our O2 sensor then screw it back into the cat. May have to drill out to get the end of the O2 sensor to go all the way in
@elmerfisher10505 ай бұрын
Advance auto also sells them and yes, they do work really well, and yes, remember to drill out the end of it because I ruined the threads on my O2 sensor, you don’t have to drill it out if you buy one that is long enough, advance sells two different lengths
@DEVILDOG19647 ай бұрын
I TRIED CATACLEAN AND REDLINE AT THE SAME TIME LESS THAN 1/2 TANK F 150. IT TOOK A WEEK FOR THE LIGHT TO GO OFF IT DID FOR 10 MONTHS BACK ON AGAIN. GOT TO GET MY TANK DOWN TO 1/4 FULL.10/28/23
@pigswillbepigs Жыл бұрын
Ps if you take the cat off smash the inners out. 👍 worked for me.
@billsauer316411 ай бұрын
That's all fine and dandy if you live in a county where you don't have to have your car inspected. If you live somewhere where you have to have your car inspected yearly in order to get your sticker that will not work. Cutting the biscuit out of your converter will not turn your check engine light off
@pigswillbepigs11 ай бұрын
@@billsauer3164 not my fault you chose to live in California. Now get back in ya Prius. 😂
@GweGwe-lu9ob9 ай бұрын
Honestly I’m thinking of just cutting mine it’s a waste of money it’s literally cheaper to Straight pipe my truck and cut the cats and muffler them to have a useless part that makes my truck run like ass
@georgesaucedo79299 ай бұрын
@@GweGwe-lu9obI’m the same way my trucks has been lagging so much and makes a noise from the cats at a stop, been thinking of just straight piping it instead of trying Lacquer thinner and ruining some engine component
@GweGwe-lu9ob9 ай бұрын
@@georgesaucedo7929 yeah man I just straight piped my 2002 cammed 5.3 and it was well worth it and it is pushing like 360 right now next up a tune.
@feliponii9940 Жыл бұрын
Thanks for trying and for the results
@peterb57069 ай бұрын
Move to Florida where there are no inspections.
@khalid95eG9 күн бұрын
I know how to get rid of a p0420 cat code without changing out your cats...
@NortheastLA900429 күн бұрын
Use an early Ford spark plug non fouler and install it at the rear oxygen sensor you may have to do a little grinding but it works
@D-Slowpass10 ай бұрын
I used Rislone cat cleaner and the code went away😅
@tiggzzgaming22492 ай бұрын
Cataclean is the only one of the fuel additives that works worth of crap. Lacquer thinner won't help unless you take the cats off and clean them directly with it.
@charizmah58 ай бұрын
buy a obd2 scanner to eliminate the guessing stats
@brandiszablewski588010 ай бұрын
So how is your vehicle running now? How many miles has it been? I have been told this can cause significantly worse damage to the engine and other components of the vehicle
@Carl-fl6wl5 ай бұрын
2014 Ford edge I got cat effiency code ..I ran cat cleaner it worked I was spending too much on the cat cleaner ....I poured lacquer thinner and I poured a quart or so of it the light went away I did not clear it ....using higher octane gas the light stays away I run crappy gas in comes back on ...thinner works for me
@kristopherhasenbuhler53938 ай бұрын
Thanks for posting
@newbluerugby16 күн бұрын
Hey man, what are the specs on your Matrix? I have the 2010 AWD 2.4L, it’s amazing. It’s the tiniest most capable SUV buyable at that time. It’s even tow-rated 1,500lbs.
@one2toomany7 ай бұрын
It worked in my truck for approximately 6 months, then the code came back on. I cleared the code, and have yet to see if the code returns.
@michaelwoods38504 ай бұрын
Goodbye injector seals
@Arkie407 Жыл бұрын
Thx for the test and sharing your results!
@kelsycunningham84527 ай бұрын
I'd run a quart of lacquer thinner down the carburetor of old Dodges back in the 70's. It would blow every bit of carbon out the tailpipe, they'd never run better. But I'd be very concerned that in tank fuel pumps won't survive long soaking in that strong solvent.
@nathanhardin85303 ай бұрын
I tried this on my 2015 F-150 with a 2.7 ecoboost. The passenger cat was giving me a code. I already had the driver side cat replaced. It did not work for my truck. I have tried about four separate times with laquer thinner, and the code comes back after I reset it.
@afroandrew816 Жыл бұрын
Yea 3 miles is definitely not enough to say it didn’t work if it comes on after 100 miles then it probably didn’t work
@cesarzavala17819 ай бұрын
If you have a Nissan Altima good luck getting that back catalytic converter😅
@leonardoneil87687 ай бұрын
Your supposed to have half a tank of gas they put applicant in then drive 200 or let idle for a hr ur choice then Wala clean catz
@rolls_8798 Жыл бұрын
Toyota back at it with the dpf and cat issues I see
@user-yu9zr2hu2rАй бұрын
Have you tried CataClean?
@fonz1anddone7137 ай бұрын
The system needs to run thru X amount of cycles to clear a code itself. Just cause you cleared it and it came back means nothing. Plus it may not even be the cats. Check the O2 voltages up and downstream easy to tell if that was the problem in first place first..
@LMB22210 ай бұрын
My Honda's fuel pump died after I tried this.
@kelsycunningham84527 ай бұрын
Too strong a solvent for the in tank pump.
@sak13203 ай бұрын
Works for me.. 2000 honda odyssey 260000 miles😊
@robertchandler7733 Жыл бұрын
Glad it still runs. A FOR SALE sign woulda been even cheaper and save much more time.
@bobbyrobinson58626 ай бұрын
Much luv❤
@rbisthatyou5 ай бұрын
Ratio off you’re supposed to use half a tank gas not fill he car all the way up
@cycleguy66623 күн бұрын
Could be a lazy or slow oxygen sensors too!! Try cataclean first then you have to do oxygen sensor testing!!
@eyyymanuel3 ай бұрын
Just check voltage on rear o2 if stuck at same volt then it's broken change the o2 at the back of cat your reader should show you
@82_KID3 ай бұрын
I haven't seen the GALLONS there in some time. Only quarts. I will look again.
@toob247 Жыл бұрын
Drill a hole in the ca and fill it up and maybe it will clean it like a parts wash. Not doing crap after being burned.
@remocres8 ай бұрын
driving 30 miles so that's about 1 gallon of fuel so if he got 10 to 1 so its not 1 gallon of thinner through it needs 300 miles its unclear about how many miles her ran the way hes talking
@atomicdmt87634 ай бұрын
gotta run it awhile!
@chrisrhoads82565 ай бұрын
Use 5 to 6 gallons / u have keep useing it / one time doesn't do it you have keep on it 🤛👊🤜
@xpisporshotx3 ай бұрын
That car only have a 10gal tank cause you was running on full. Plus, you're supposed to run at a higher RPM. Like around 2500 rpm for half an hour.
@toob247 Жыл бұрын
Cleaned your fuel injectors and the back of your valves. Not the cat
@queensavage824710 ай бұрын
It does work i just did it yesterday on my 2009 dodge caliber u needa drive 150 miles
@tosinkiladejo72699 ай бұрын
150 miles of driving can only be achieved if driving to heaven😂
@WoWgen123 Жыл бұрын
Could have bought a $2 O2 extender 😂
@HM-ke1qm10 ай бұрын
Where?
@WoWgen12310 ай бұрын
@@HM-ke1qm Any autoparts store or amazon
@sayleebocook6293Ай бұрын
When you do it that way you're supposed to drive at 150 MI
@JM-rf3lv6 ай бұрын
It took awhile and a tank or two after lacquer for my light to stay off. It been almost a year for good measure I’m doing it again
@AwesomenessIskey7 күн бұрын
You are better off dumping some into the cat if removing upstream sensor. Works better and u use less
@AaronCross7603 ай бұрын
i just switched to premium gas instead of regular and it seems to do the trick
@SMychal254 ай бұрын
Not a myth, it works and you need to drive at least 150 at freeway speeds or run it at 2500 RPM's for 30 min.
@5jjt4 ай бұрын
Try cataclean. May need a few treatments. Worked fir me. Try the bigger bittle drom walazon.
@LygerTheCLaw2 ай бұрын
the big guns? try injected water. you just have to meter it properly. as well, cats do die with age, the precious metals do degrade and exit the exhaust, rendering the cat unable to do its job no matter what you use to try and clean it with.
@Broman-es4sx Жыл бұрын
You thinned it out too much run that shit potent
@jr5324 Жыл бұрын
I've tried this too but on a 03 jaguar. Didn't work.
@HS-sr9ww Жыл бұрын
probably your ratio is wrong or you don't run on motorway for more than 400miles.
@CbrF4i600cc Жыл бұрын
Crc pass emissions guarentee is what your looking for
@rwid716634 ай бұрын
not sure where you got the ten to one scotty just said a gallon to a half tank and then take a long trip at high rpm
@jameswhitener123 Жыл бұрын
The only thing I know cleans catalytic converter to take them off or knock them out Fargo to Philadelphia let somebody steal it
@randallsmerna3844 ай бұрын
20 miles? You need to drive like 200 miles! Also, you remove the cleaning attributes of the lacquer thinner through the combustion process. Better to remove/soak Cat in a Lacquer thinner/soap & water mixture.
@lilmike27104 күн бұрын
Welp... The light came on after 10 miles. I didn't get immediate results so obviously it doesn't work. 🙄 Bruh, it takes at least 50 to 100 miles for it to clean enough to clear the code
@six4standingtall2 ай бұрын
177 Miles from a tank of gas ?
@brarautorepairs7 ай бұрын
I thought Toyotas made reliable cars
@fredkuhn165Ай бұрын
So now you see how it feels to buy gas in ca for $20😂
@jeffnoble97573 ай бұрын
Use one gallon in a half a tank of gas and drive over one hundred miles
@user-dh9iy7ty3y7 ай бұрын
Clear the code and drive more. I got to 220miles before the code come back
@frankthewrench3404 ай бұрын
Scotty Kilmer uses soapy water and lets it soak overnight
@FastInDrift9 ай бұрын
Put a spark plug fouler on the rear oxygen sensor and it will work
@therealjpoe238 ай бұрын
@ $7 its much cheaper too
@FastInDrift6 ай бұрын
You’ll just have to drill out the hole so it’s bigger
@joshvaandrew65413 ай бұрын
I tried this on my 2016 Ford Focus. Seemingly running less rough but the code has not cleared
@MarkHorn-td9mh2 ай бұрын
Did u clear the code with a scanner? Otherwise it will still be on.
@10useefan9 күн бұрын
Shit worked for me! 2016 Ford F-150 3.5 Eco boost. I ran 200 miles. You must keep your RPMS above 2000 as much as poossible. Put 3/4 tank new gas added lucas injector cleaner and seafoam to the tank. Reset engine light and it has not come back on 1000 miles later I now only use Exxon, Shell or BP gas now. NO MORE CHEEP AND SHITTY GAS.
@Saint_Anger79Ай бұрын
To the maker of this video, what is the point of putting a possible solution into action when you don't properly research the solution which on this topic you obviously did not. You need to run a minimum of 100 miles keeping your RPMs at a minimum of 2K the majority of the ride for the thinner to work. 150 miles being the ideal distance.
@Stanbott Жыл бұрын
You have to drive more than 30 mi for the test
@nothingtodo587 ай бұрын
I suspect it works best on cats that are just starting to go bad.
@mayotrapz9355 Жыл бұрын
Maybe if you werent always on E you wouldnt be sucking up air in the fuel pump💀
@robertlennie7466 Жыл бұрын
Get the adapter that pulls the downstream O2 sensor mostly out of the exhaust stream - problem solved for 20 bucks!
@santandrjp Жыл бұрын
they’re called a spark plug non-fouler, made by Dorman, you’ll need to know the size/thread pitch of your secondary O2 sensor, some applications (my Honda for example) need two (stacked on top of each other)
@coreturkoane55708 ай бұрын
@@santandrjpwhat size would fit a 2014 Honda Civic?
@tallthinwavy3Ай бұрын
Drive more than 30 miles.
@polloloci213 ай бұрын
Dude! You only got 177 miles in 10 gallons?!! Is that a 1.8 or 2.4- but either way- that’s bad.
@sweet8763alex5 ай бұрын
ooh you are open thinner so unsafe manner. Many years ago I had a some eye splashing drop if no protect glasses . It no funny was I grabed from near table first cutching watter bottle, and fill it down at my eye never want this experience . SO BE CAREFUL !!
@rwid716634 ай бұрын
30 miles? it takes a lot more than 30 miles you run it at close to 2500 rpms or at least 2000 till almost gone then refill your tank
@alejandroaguilar90387 ай бұрын
1 GALLON OF THE ORIGINAL LAQUERTHINNER PER 10 GALLONS GAS. DRIVE FOR 100 MILES
@do5e Жыл бұрын
i don't think you did the proper ratio, it's supposed to be one gallon of lacquer for one half tank of fuel. it seems you added a gallon and then filled up the tank, that would have diluted the lacquer too much.
@AKULA68910 ай бұрын
The ratio is 10 gallons fuel to 1 gallon paint thinner! Depending on mid or full size vehicles a half Tank would be approximately 10 gallons!!!!!
@weskirkland58509 ай бұрын
proper ratio? half tank of gas? What size tank? 13 gallons or 36 gallons?
@weskirkland58509 ай бұрын
big discrepancy there. ecoboxes have 12-13 gallons. normal cars 15-17 gallons. trucks 18-36 gallons.