Thank you for your video! I scanned my '07 Avalon 3.5L and it was a P0420. I had already replaced the O2 sensor on bank 1 ahead of the converter, so I replaced the O2 sensor after the converter on bank 1. CEL went off and then came on later. I saw your video, went to the part store, bought the cleaner, and rented an O2 removal tool. I sprayed the cleaner in 5 times at 5-10 minute intervals and sprayed the O2 sensor. I cleared the previous code and started the engine, and after a couple of minutes, the CEL went out. Hopefully, it's fixed. Thanks again!!. A final thought. For people who try this, as you are spraying the cleaner into the O2 sensor hole, make sure that the little tube that pushes into the spray button does not fall into the hole. You would be in trouble!

This guy is good on keeping communications with people who have questions in the comments. Thanks. Keep the good work.

@RBTheMechanic

Жыл бұрын

Thank u yup I tried to help as much as I can I do get comments that’s I can’t reply back some times it shows but when I click it dosent come up

I sprayed that throttle cleaner through the upstream O2 port and my p0420 check engine light turned off on its own. Thank you so much for this advice. You are great and you saved me at least 1,000 dollars in repairs.

@RBTheMechanic

5 ай бұрын

Nice good job!!!

@krakenhits1587

5 ай бұрын

Just wondering if I have to remove the bottom sensor as well? I already popped off the top one and I have the throttle body cleaner but I don't want to spray it in there and have it catch fire. Do I have to remove the downstream one as well or only put it in the top and clear out the the honeycomb? I inspected it with a flashlight in the Combs look perfectly fine

@BRANDONGONE92

5 ай бұрын

​@@krakenhits1587did you ever figure out if the down steam sensor needs removed too?

@krakenhits1587

5 ай бұрын

@@BRANDONGONE92 no

@howardjordan8838

4 ай бұрын

The answer to your question is said in the video, but it isnot shown. He said to make sure you do the bottom one.​@krakenhits1587

Always disconnect the o2 sensor wire connector. If you don't you'll be buying another, the wires twist, stretch, or break resulting in o2 error codes.

@pedroronda7486

2 жыл бұрын

was gonna say the same thing would have taken 20 sec

@van8365

2 жыл бұрын

no its must be cleaned with cata this is wrong cleaneng...

@warrio3176

2 жыл бұрын

Ohhhh man I wish u would have used the camara to see if their in immediate reaction.

@tagminda4565

2 жыл бұрын

True

@CharlesLease-ei1ee

9 ай бұрын

You basically want anything that’s going to eat carbon diesel fuel, purple power, optimizer GM top in cleaner, the foam spray and you really want to use a whole can on it and just let it set that GM Pop in Cleaner if you spray the cylinder or a cat and let it sit overnight And then the following day get the cleaner out look at it with a borescope camera. He looks brand new in there the GM top in cleaner optimizer for Chryslers that is for carbon cleans. It breaks the carbon down into dust you could D carbon your motor with water it’s a old-school trick, I’m not going to explain it how it’s done or watt temperatures or anything of the sort because if you’ve never done it, you can destroy a motor it’s the old-school trick and the old guys out there know what I’m talking about they’ll know exactly carbon and water. Don’t get along with each other who loses the battle the carbon does, this is how they done it before we had all these chemicals all old-school tracks there’s still out there we still use them. They work on modern days now computerized a lot of times you still have to use them. There’s guys out there that knows the tricks and lotta guys don’t like to give their tricks up they don’t believe in letting their information out And I’m one of them because if somebody does something wrong I’m liable I could be sued because they’ve done it wrong. The way the world is now everybody wants to sue and there’s one say payday is what they say not on my clock. I’ve told a lot of these guys it put a KZread videos out. You got a watch it because you put that information out and somebody does it wrong you’re liable That’s why I don’t put a Videos out because there’s too many people out there that don’t use common sense no more that’s the number one reason they can’t think on her own and the new generation out there is coming in the automotive they think the scanner is the god that code is the problem. The thing is they need to learn how to read the scanner read the data That scanner disappoint you in a direction. Where are the problems that and then you got a figure it out you have to diagnose it because the scanner will tell you if it’s electrical problem mechanical problem, sensor problem or internal problem it’s all in the way it’s worded, you have to know how to read between the lines And have enough background in the automotive to figure it out or diagnose it and a lot of guys out there. Just want to throw parts at him all day long and just say check engine light used to thousand dollars worth of parts at it still not fixed it could be a loose pin. It could be a bad ground. It could be a broken wire, or it could be were a mouse chewed on the wires why do you have to get a meter out and start diagnosing it nowadays that is a bad word to people they don’t want to hear diagnose in a vehicle. They just want to throw parts at it and go people need to learn how to take a step back idle down take some time fix it, right Yeah there’s some vehicles were you have to have a part known good part for a test part for a quick test to determine OK which is it here? If you’re in a time frame you can throw that part on there OK spit out another code OK that wire is good but it’s not. It helps you that’s all I’m a say and then you just have to figure it out yourself. and people need to learn how to pronounce catalyst system not Cadillac.

After spending quite some dough with various mechanics trying to fix my vehicle I just followed your tutorial and VOILA! The dashboard lights are off!!! Many many thanks, Bro!

@RBTheMechanic

Ай бұрын

Nice great job!

this guys is a car saver thank you

@RBTheMechanic

5 ай бұрын

Yup welcome!!

Good video. I wondered if you could do this. I didn't know if the liquid would cause the honeycombs to melt together. Good job!

@RBTheMechanic

Жыл бұрын

U have to let it dry for couple of hours

@capri8225

Жыл бұрын

@@RBTheMechanic ok

I have tried: drill a small hose in the exhaust before the cat con: and WHILE RUNNING spray (carb cleaner?) w plastic spray tube into the hole.... careful, will melt....... but goes directly to the cats, air flow. Seemed to improve!. And tap, screw in a screw to block the small hole (accessible for future treatments)

@RBTheMechanic

Жыл бұрын

Good job!!

@Stretch843

3 ай бұрын

No concern for UT catching fire?!

@newdreamz

Ай бұрын

Still no check engine light?

@zams8793

19 күн бұрын

Update please.

Heck yeah! nice video. What type of socket is that you are using to take the O2 sensor off?

@RBTheMechanic

2 жыл бұрын

Oxygen sensor socket 22mm or 3/8

@gradyhernandez4699

2 жыл бұрын

7\8 special slit socket

Great job

Thank you. I did the same thing you're doing and it cleared the check engine light. Did smog check and it passed.

@RBTheMechanic

10 ай бұрын

Nice good job

@elmexicanodelabarba3245

5 ай бұрын

For how long did it worked?? Am trying to do the same thing to mine but I was wondering if the check engine light stay off

@KJB9566

2 ай бұрын

@@elmexicanodelabarba3245 give it a shot maybe it lasts longer than you think America mechanic will charge 2000K for replacement 😁 awful service

Thank you RB. It worked for my RAV4. it took 2 to 3 days to disappear the P0402 code.

@RBTheMechanic

Ай бұрын

Nice good job

Very easy..tq sir share information..nice 👍

@RBTheMechanic

Жыл бұрын

Thank u

@Jalak_Lenteng999

Жыл бұрын

​@@RBTheMechanic umostwc

Gracias esta muy bien explicado esto me ayudara mucho

I have a 2008 Mitsubishi Eclipse with the 2.4L 4 cyl. The catyletic converter is part of the exhaust manifold. I was wondering if this would work for my situation? I have also heard of using lacquer thinner. Could I use a funnel and pour a little in it as well as using the spray?

@RBTheMechanic

Жыл бұрын

No best thing u can use in this can is fuel injection it will enter from engine injectors and go through whole systm

I got 2011 gmc terrain 2.4l it was stalling and losing power sometimes when going up hill I took it to Buick and GMC at highland Indiana they told me the mix is rich and they will change high pressure fuel pump and the repair would cost me $800 with part included. I told them I will do it another time not today. So I go home watch youtube videos on how to change the high pressure fuel pump ordered the part from rock auto for $200 bought tools from Walmart and Amazon did it myself I even changed the oil. After all that it was still stalling and losing power like usual. So I thought maybe it was spark plug so I changed them myself same problem then I changed both solenoids same problem. Until came across a video about catalytic converter issues. So I watched your video too because I didn’t want take down the cat to clean it so remove the upstream 02 sensor went to Walmart bought some Lacquer thinner use a flex hose and funnel and pour Lacquer thinner in. Then I use mass sensor cleaner and clean o2 sensor too. After putting back everything in place I turn on the car it was smoking a lot then after about 10 mins the smoke clear and I took it for a drive around the block then up some hills everything work well no more stalling and losing power. Thank you for the idea to put the cleaner through the upstream o2 sensor slot. Bless you and all the other KZreadrs helping us out by sharing your knowledge. Thank you my brother.

@RBTheMechanic

Жыл бұрын

Oh wow u did lottttt I think maybe cleaning the maf sensor did the fix!!!

Alright then, definitely trying this on 97 pathfinder. Thanks for the input.

@RBTheMechanic

6 ай бұрын

Good luck!

I got 2006 Honda Pilot screaming code p420 p430 cat’s I’m gonna try this with Berryman B12 straight down the hole. I did today and I got that resistance as I accelerate gone and it starts in one second now. Before it would crank hard for 5-10 seconds before start. I’m test driving to see if overheating at traffic stop goes away. Not sure I’ll let you know if clogged catalytic was the problem to all my issues

@RBTheMechanic

3 ай бұрын

Well I would reset and wait for the light to pop up and scan again immediately

I have no codes but have a sulfur smell (more when accelerating) new battery and alternator (w/voltage regulator). Voltage tested and it’s good. 2 new upstream O2 sensors (didn’t change downstream under car). I think cat maybe clogged what do you recommend?

@RBTheMechanic

Жыл бұрын

Yes it could be bad catalytic also down stream sensors

Thanks for the video

@RBTheMechanic

4 ай бұрын

No problem!

Yes the hole gets hot. So spray and do it 4 times. Stick in the hole 4 times and spray

@TheMAC0876

Жыл бұрын

Are you referring to soft porn? 😂😂

wished you would of put a pressure gauge on to test before and after back pressure on that cat ,a good back pressure is 1 1/2 psi at 2500 rpm .

@RBTheMechanic

2 жыл бұрын

Yeah but that would make job hell of difficult pressure would go out valves

I hope people realize you can't clean the cat with mass air cleaner like come on bro do it the right way. And unplug the o2 sensor you just ruined his wires because your to lazy to unplug a wire that takes 20 seconds.

@davidschreiner4411

6 ай бұрын

He didn't use mass air flow sensor cleaner he used throttle body cleaner he clearly showed you the label, there is a difference!

@lindasorrow5763

3 ай бұрын

So I need you to make me a small video showing me where the o2 sensor is lol on a 2011 Nissan Sentra lol jk I will google it or U-Tube it too !! But THANK YOU SO VERY MUCH FOR THIS INFORMATION BECAUSE I DID NOT KNOW IT

@rapinncapin123

19 күн бұрын

😂😂😂

Hi did it workout with that camry, coz i have the same issue with the same car camry 2005,i replaced 02 sensor but code P420 came back after a week

@RBTheMechanic

Жыл бұрын

Yes I had free I had to clean or replace the downstream o2 sensor check that also

thank you for your vidio... your a great help

Looks like it's worth a try. Good information.

@RBTheMechanic

Ай бұрын

Yup

Once you turn turn turn then the wire is snapped off cause you twisted the wire . Yes just stick it in the hole and spray.

I have a 13 Mitsubishi Lancer with a horizontal cat. I had a p0420 code come on about a year ago. I tried a bottle cataclean about 4 months ago and the code went away for a day and came right back. About 2 months ago I removed the front o2 sensor and sprayed about 2.5 cans of seaform top end cleaner into the cat. I made tons of smoke and it took about 10 to 15 minutes to burn off but did nothing. Well just today I bought 6 cans of Berryman carb/fuel system cleaner (90oz) and poured them into the cat via a flexible funnel (through front o2 hole again). Chased it with a tank of compressed air. Since it says the Berryman is highly flammable I then added about 1/2 to a gallon on purple power cleaner/degreaser to the cat and chased it with compressed air again. I didn't pay attention to the check engine light when I first started it up but when I did, probably about 30 seconds after startup, there was no check engine light on. Hopefully it lasts but the procedure I described worked for me immediately for a stubborn light that was on for about a year.

@originalimmigration

Жыл бұрын

Did it come back?

@theMatrixEndsHere

Жыл бұрын

@@originalimmigration Not yet but it was only yesterday and I have only driven 25 miles.

@Jerri001

Жыл бұрын

Came back?

@theMatrixEndsHere

Жыл бұрын

@@Jerri001 No not yet! It has been at least 2K miles if not 3K. Still no engine light!

@Jerri001

Жыл бұрын

@@theMatrixEndsHere thanks

Vacuum on the exhaust pipe seems a good idea. Help to suck the fluid into the cat and dry it out before starting. Also a spray bottle with some distilled water as a rinse. Trying this on a 94 f150 today. Will report.

@RBTheMechanic

2 жыл бұрын

Cool yup let me know

@irisbaez1972

2 жыл бұрын

report please, report. it's 6 days ago. What happened?

@RBTheMechanic

2 жыл бұрын

@@irisbaez1972 I’m sorry refresh my memory

@irisbaez1972

2 жыл бұрын

@@RBTheMechanic John leigh says he will report back, still waiting but he never came back

@RBTheMechanic

2 жыл бұрын

@@irisbaez1972 oh yeah true lol I though u was waiting on somthing from my end

Very good idea, thanks

@RBTheMechanic

2 жыл бұрын

Welcome!!!

@nathanmccumber8965

2 ай бұрын

​@@RBTheMechanicdid it work ?

My Honda Odyssey has two catalytic converters. I the check engine light come on and sometimes goes off by itself. I checked and it say bank 2 catalytic converter, the one immediately after the engine, similar to the place of your Toyota. If I put this spray in will the dirt move from Bank 2 to bank 1? Or will this clean them both?

@RBTheMechanic

Жыл бұрын

I u can clean sensor but after u do this or replace sensor the down stream

I've heard others say they add cleaner to it when car is hot, let it sit for an hour or so to heat soak, then run it to clean through. Is that safe way to do??

@RBTheMechanic

Жыл бұрын

Yes u can do either or it’s fine

@ RB THE Mechanic, does the catalytic converter have to be cooled off, before spraying the cleaner? And does the spray cleaner have to dry overnight?

@RBTheMechanic

12 күн бұрын

Yes both would be good cold and let it rest over night or few hours

@orinyellowhair8278

10 күн бұрын

Also another question, do I use half the can or the full can of spray cleaner?

@RBTheMechanic

10 күн бұрын

@@orinyellowhair8278 less than half

supposed to put never seize on sensor threads

You can also use an additive that is designed to clean the catalytic converter and spray it on there, it is designed especially for catalytic converters to be sprayed via the intake Port but you can do it directly on a catalytic converter which is more efficient

@RBTheMechanic

2 ай бұрын

Yup

I have a 2009 nissan altima same problem. Will try that and report. Thanks so much

@RBTheMechanic

Жыл бұрын

Yup use catalytic cleaner let it dry off for a bit also u can try fuel injection

@borikennautical6649

Жыл бұрын

@@RBTheMechanic Thanks so much

@artsnow8872

2 ай бұрын

Do you mean to say that, "..you can use fuel injector CLEANER"?@@RBTheMechanic

Would CRC Mass Air Flow Sensor Cleaner work as well? Thanks for the video 2094!

@RBTheMechanic

2 жыл бұрын

Yupp I use crc lot

@BlimpChimps

2 жыл бұрын

@@RBTheMechanic I don't care what they say You're a beast!

@RBTheMechanic

2 жыл бұрын

@@BlimpChimps yeah bro!!! Every single viewer got to save money!!! Solid Guillermo clean videos easy to do urself

@victorjegede4380

2 жыл бұрын

can carburetor cleaner work as well???

@RBTheMechanic

2 жыл бұрын

@@victorjegede4380 yuppp

Skipped a little of steps and used the wrong cleaner. Sea Foam is what you need to use. Also use CRC contact cleaner to clean the contacts WHEN YOU DISCONNECT THE SENSOR WIRES.

@RBTheMechanic

Жыл бұрын

Ok

@lorikuck19

Жыл бұрын

Seafoam didn’t work for me.

@MexicoAdventurer

Жыл бұрын

@@lorikuck19 You're not supposed to ingest it.

@lorikuck19

Жыл бұрын

@@MexicoAdventurer no shit. 🤦‍♂️

@fergap9438

10 ай бұрын

​@@lorikuck19didn't work as a laxative either?😂😂

Have you had any luck buying O2 sensors from auto parts stores or eBay? Not sure if I should buy OEM sensors or not or aftermarkets are acceptable?

@RBTheMechanic

5 ай бұрын

Only from my trusted part store “ Buywise”

I’m planning on using the whole can, do you recommend. Sea Foam or carb cleaner?

@RBTheMechanic

2 ай бұрын

I have used seafoam

Great idea! I'll try this on my 2013 Hyundai which is burning one (1) quart of motor every 500 miles; and, now, the car has driveability problems.

@RBTheMechanic

2 ай бұрын

Oh those are terrible!!! Try fixing ur oil consumption issue first

@bobreese4807

Ай бұрын

Check out piston soak videos.. B12 cleaner or others

I got the P0420 error on my used 2016 CRV in January end. Took it to the dealer and he charged for check engine light and erased the code via ECM/PCM. The error came back again after 4 weeks and just when I thought of going back to the dealer the code/check engine light itself disappeared for a week but came back again a couple days back. I took it to the dealer today and he says technician checked o2 sensor and exhaust leak and they are not a problem. He has given me an estimate now for catalytic converter change and has quoted close to $1700! I do not have the budget now and would like to try this method or May be try any other liquid catalytic cleaner via gas intake. A local mechanic suggested to try erasing the code 3 times before taking any decision spending so much money. What are your thoughts please or what do you suggest what best liquid cleaner I can try now???

@RBTheMechanic

Жыл бұрын

U can try fuel edditeves before replacing it might get cleaned out or u can try replacing down stream sensor other wise u need to replace the catalytic

@ducrogers302

5 ай бұрын

What did you end up doing? And did it fix the p0420

@worldpeace5853

5 ай бұрын

@@ducrogers302 had to ultimately change the catalytic converter

So I got a 2005 Toyota Camry 2.4 l it's burning oil either from the valves or the pistons which I'm working on. Would it be crazy to use gunk cleaner and then spray it out as that helps to move the oil through or with the catalytics cleaner spray work just fine? This is my second cat because I failed to fix it oil burning issue. The new cat took a year before it started getting clogged

@RBTheMechanic

3 ай бұрын

Try catalytic cleaner or fuel additives

I have my 2007 Lincoln Navigator lack of power… no engine light but the rpm wouldn’t exceed 3000 rpm could be a catalytic converters problem? any advice will be appreciated… thanks

@RBTheMechanic

Жыл бұрын

Scan the car for codes even if u have no light and see if there’s any pending or memory codes with high end scan tool

I have a 2007 Toyota Tacoma 2.7 liter. The catalytic converter is horizontal. I checked the graph on the diagnostic tool. The second O2 sensor was erratic. I removed the O2 sensors and cleaned them with the throttle body cleaner. I then sprayed through the #1 sensor hole. I emptied two cans and stuck a air hose in it and blew it out for a few minutes.Since the throttle body cleaner is highly flammable,I decided to stick the hose of a wet/dry vac in the tailpipe and let it run over an hour. I then installed the O2 sensors and started it up. The diagnostic tool shows the #2 O2 sensor is rock solid at 0.015 volts,regardless of the throttle position. I call that a win.If the P0420 comes back, I will post it but, I think this is cured.Some people are using laquer thinner in the tank.Don’t Do That It can damage a lot of parts from the fuel pump to the injectors.Bad advice as far as I am concerned.Thanks for the video.Each person will have to adapt your proceedure to their individual vehicle but,this works very,very well.

@RBTheMechanic

2 жыл бұрын

Good job!!!

@marsinbako8491

2 жыл бұрын

Is the code came back?

@RBTheMechanic

2 жыл бұрын

@@marsinbako8491 most cars I do don’t and it dose improve fuel economy also clean out the oxygen sensors

@jamesdavis8021

2 жыл бұрын

@@marsinbako8491 Yes it did. I looked through the 0- sensor hole with a camera.Catalyst material is not broken or stopped up. I installed a extension on the # 0-2 sensor and reset the p-0420 alarm.Problem has not returned in 2 months.There is no emissions testing in my state.As long as they don’t, I am going to treat it like a low tire pressure alarm.Not interested

@bobbymiller8563

2 жыл бұрын

@@jamesdavis8021 what was the extension you purchased. Do you have a part number

OK, gracias compa. May have to try it!

I used to have a code for catalytic converter. I've been using injector cleaners in the tank every refill. No more engine light

@RBTheMechanic

Жыл бұрын

Oh niceee

@nadeem5476

Жыл бұрын

which injector cleaner?

@RBTheMechanic

Жыл бұрын

@@nadeem5476 crc

@fernesal

Жыл бұрын

@@nadeem5476 Israrted with cataclean twice it went away for 100 miles. But it came back for another round. I tried B12 chemtool same thing. I tried high octane more power but same issue. I tried Lucas, gumout, stp, and I can't remember what else. I found out that a regular stp or gumout used on every full tank will keep the code away for longer. Some how now I have to use it for ever. But like I said this is a 230k mile engine. I can't say what for newer

@antoniop5889

Жыл бұрын

@@fernesal try using laquer thinner a gallon In half a take drive till the half tank is gone

Thank you very much! I applied this to my car today and it worked perfectly!! Appreciate you!! Merry Christmas🎉🎉

@RBTheMechanic

5 ай бұрын

Good job!! Merry Christmas!!!

@George-mk7lp

5 ай бұрын

Have you waited for couple of hours ?

The o2 sensor light is on on my mercedes benz, if I clean the cat, will it go off? And what if I disconnect the 02 for the cat? Will it affect the general check engine notifications?

@RBTheMechanic

Жыл бұрын

No replace the sensor don’t mess with catalytic

So for instance on a 97 Chevy 3500 dually I assume I would have to remove the O2 sensor right before the catalytic converter underneath the car correct?

@RBTheMechanic

Жыл бұрын

Yupp also clean out rear o2 sensor

@TxDuallyNation

Жыл бұрын

@@RBTheMechanic ty compa👍

If you take the downstream o2 sensor out to clean, can you spray from down there to get it directly into the cat?

@RBTheMechanic

Жыл бұрын

Not Fron down stream it has to be from upstream

@apollo11capcom39

Жыл бұрын

@@RBTheMechanic would this spray be safe to use to clean the carbon out of the EGR exhaust port/channel?

@RBTheMechanic

Жыл бұрын

@@apollo11capcom39 yup

I have a 2015 jeep patriot and my engine check light came on and said my cat isn't working properly anymore and I feel it when I drive . now should I put the liquid in my gas pump to clean it before replacing it ?

@RBTheMechanic

Жыл бұрын

No try cleaning g or replacing oxygen sensor first downstream

Why not unplug the O2 sensor instead of twisting the wire up?

@RBTheMechanic

Жыл бұрын

If u becarefull u should be good but do so

@JayElement13

Жыл бұрын

That’s what I thought 😂

@johnnymurff4137

Жыл бұрын

Wow I have 99 Toyota Camry manual transmission and the code came up as a catalytic converter, I didn't think to try the process of elimination and clean the O2 sensor but I will try this. Hopefully it will work.

@wendellgreenidge3362

Жыл бұрын

What’s the issue with twisting the wires? You know that how manufacturers store the wire and how do you think it looks inside the wire loom? If you are worried about the wires breaking then it’s probably time to replace the sensor anyways

@arturozarate1752

Жыл бұрын

A lot of Toyota connectors become brittle over time. The huge pain in the ass of hunting another OEM connector down alone makes unplug as few things as possible.

I tried it yesterday after trying multiple options. Have a monitor hooked up to check data. On my way home from work all my monitors became ready. Passed smog.

@RBTheMechanic

Ай бұрын

Nice good job

Worked! Thank you

@RBTheMechanic

8 ай бұрын

You're welcome!

@ducrogers302

5 ай бұрын

Is the p0420 code still off?

@RBTheMechanic

5 ай бұрын

@@ducrogers302 yup car passed inspection also

92 cheby s10. 2.5l throttle body.. driving an I can push pedal an engine will go but u can feel it is wanting to keep up an slows down. let off gas pedal an it'll go again for a few....cat clogged? would this help my truck?

@RBTheMechanic

2 жыл бұрын

Do u have codes for catalytic. U can remove the oxygen sensor before the catalytic it will be loud but u can confirm it this way

I just added a coupler and will properly clean it this coming summer. That fixed the light. Even removing the oxygen sensor and my fingers were frozen!

@JakesRwild

10 ай бұрын

What kind of coupler did you add and where? I'm having the same issue.

Interesting. I wonder if this would be good preventive maintenance.

@zephyrguzman6462

2 жыл бұрын

Font see why not🤷‍♂️

@gradyhernandez4699

2 жыл бұрын

The EGR valve gets build up on it too. It can be cleaned as well. The intake manifold too. ( Dodge caravan 2.4) I'm referring to.clean the " tube" that goes to and from intake manifold too. On my van ( caravan) that " tube" was clogged up . I bought it from a one owner

Don't come at me for asking a dumb question.. But I have a 2009 Malibu 3.6. The o2 sensor and cat are accessible. Do I have to remove the cat to drill a hole in it? Where do I drill the hole? It's horizontal. Thanks in advance for any help.

@RBTheMechanic

7 күн бұрын

Drill hole? U don’t do that access through o2 port

Dosnt those arosol cans stop dispensing the fluid when upside down?

@RBTheMechanic

Жыл бұрын

Turn it straight it adds pressure

What’s the socket wrench? And the bolt that has the sensor slide in? So it’s easier to take off the sensor . Looks made exactly for that job.

@RBTheMechanic

Жыл бұрын

22mm oxygen sensor tools

Does this method work on all cars? I have a 06 dodge magnum I'm thinking of trying this on

@RBTheMechanic

2 жыл бұрын

Yeah just make sure u let it dry

@Jokes_on_D

Жыл бұрын

@@RBTheMechanic thank you

I would like to see if the catalyst was damaged first. The throttle body cleaner is primarily xylene and would have no ill effect on the ceramic honeycomb. If the catalyst if fouled, this would be a temporary fix pending correcting the cause of the fouling.

@RBTheMechanic

7 ай бұрын

This been good ever since. Passed inspection and all

hello friend, my 06 honda catalytic convertor is restricted. the sensor is on top of convertor. is this method working on mine too ? if yes, what kind of cleaner you offer? what about if using actual gas to clean inside it using pump or whatever. I've seen a video talking about adding to the gas tank. is that working same as directly clean the inside net through sensor hole? thanks for your help in advance.

@RBTheMechanic

Жыл бұрын

If it severely restricted then u have to replace it

Can you spray liqui moly catalytic system cleaner in there ? And also should you spray it while the car is running or like in the video ?

@RBTheMechanic

Жыл бұрын

No not with car running never do that

@ahkh642

Жыл бұрын

@@RBTheMechanic ok so i have two sensors one in the back of the turbocharger and one is after the catalytic converter do i spray inside both locations of o2 sensors or just the one that is close to the catalytic converter

@RBTheMechanic

Жыл бұрын

@@ahkh642 what kinda car u have not sure the set up of ur catalytic but it might not work out due to location on sensor

@ahkh642

Жыл бұрын

@@RBTheMechanic you probably have never heard of it , it's from a Chinese manufacturer called Gac Motor , Ga4 . anyways thanks for your help i really appreciate the dedication you have for your channel you're a really nice guy i hope you get whatever you want in life you sure deserve it

Throttle cleaner / solvents can flash off... also if cat isnt vertical I'd think the sediment would dislove but not fall off? Good idea though to remove the o2 and or drill a small hole.

The first sensor is the precat sensor it monitors air fuel ratio. The second one is the one that monitors catalyst efficiency.

@RBTheMechanic

2 ай бұрын

Yes

Hi: my car oxygen sensor replaced, do the smoke inspection. now no fault code, does the car have to run for 200 mi before going to the smoke inspection?

@RBTheMechanic

Жыл бұрын

It needs to be driver not all cars get ready in 200 miles some before some after usully cycle is 90 miles so try 90 miles then if u got scan tool to see if it’s ready or not other wise u have to take the chance

There's no CRC catalytic converter cleaner spray can sold in Auto parts store, nor Amazon as I could find under CRC brand. Please advise. Thanks!

@RBTheMechanic

4 ай бұрын

They have catalytic converter cleaner also fuel additives

@blkcoupequattro

3 ай бұрын

@@RBTheMechanic What about just injecting water and detergent mixture into the pipe while it's running the hot catalytic would steam the core clean. I've see water injection on turbo cars clean pistons, and combustion chambers spotless....

@RBTheMechanic

3 ай бұрын

@@blkcoupequattro no that wount be good idea

I have code P2097 on a 2014 Impala 4-Cyl 2.5L along with a code for O² Sensor 2. I replaced the O² sensor twice but still get it. I can't find anything online. Could you help me?

@RBTheMechanic

2 ай бұрын

Which oxygen sensor did u replace downstream?

Do you have to drive the car after the 40min. Or can you let it soak overnight?

@RBTheMechanic

2 жыл бұрын

Not soak over night but let it dry over night would be best

my car is 2006 suzuki mini van. can i do the same process you did in cleaning catalytic? considering my catalytic found below car engine

@RBTheMechanic

Ай бұрын

Yes u can also add fuel addatives

I thought there are two O2 sensors. One before and one after the catalytic converter. It is the one after the catalytic converter that gets fouled.

@RBTheMechanic

9 ай бұрын

Yup. One before and after

Is that spray stuff flammable? I thought the cat got super hot? Is this dangerous?

@RBTheMechanic

Жыл бұрын

U left it dry off for hour or 2

I ended up using the whole can out of frustration. Will it just take longer to dry?

@RBTheMechanic

Ай бұрын

Yup

Does the car have to be hot first? Will it work on my Volvo xc90?

@RBTheMechanic

2 жыл бұрын

Cold let it cool off u don’t wanna burn urself will work with any car remember it’s not 100% it’s just worth the try after that reset the light and keep fingers crossed

@babbies21

2 жыл бұрын

@@RBTheMechanic Thank you!

Hi. If you using liqui moly catalytic cleaner, would you input it in that same intake hole?

@RBTheMechanic

Жыл бұрын

LIQUI moly? I never used that

@maks1251

Жыл бұрын

i used the fuel additive and it worked for my clogged cat. I actually used 4-5 cans of liqui moly 7110 when at half tank (higher concentration) and went on a highway and kept rpm at at least 3000 . If your cat is clogged, if there is anything else clogged or dirty inside the whole system the additive goes through, it actually helps. If the cat is physically damaged: melted, broken - nothing will help other than getting a new one. Just get 4-5 cans of a reputable company's fuel additive that helps with a cat and youre set. Trust me, you got nothing to lose. You put it into your tank and just drive and burn it through

@paldo771

Жыл бұрын

I have use CRC cat cleaner, and our it in the tank...2 cans was all it takes to automatically cleared out the P0420 code. Think I will try this technique as a preventative maintenance as a new cat is super expensive...

If the code reader shows catalytic bank 1 issue can the 02 sensor be bad despite the scanner saying the 02 is good?

@RBTheMechanic

29 күн бұрын

Yes I had that case also when I replace catalytic for some cars code came back due to it really was fault of sensor giving false reading

How long can doing this last before the check engine light comes back on?

@RBTheMechanic

2 жыл бұрын

There’s no telling unless u preform the service reset and then keep ur fingers crossed

Nice Video my friend, it really helps to people who doesn't have alot of bankroll to replace the cat.i have a 02 Toyota camry with 2.4 engine,i alreadyreplacedthe cat 1 year ago and the upstreams 02 sensor but i haven'tchangedthe downstream.Sir can i do this spray cleaner with cat cold or does it has to be hot?

@RBTheMechanic

6 ай бұрын

Yes u can dosent matter hot or cold

Root cause : leaking valve cover gasket allows [integrated with spark plug tube seals] oil into the spark plug wells, causing misfire, thus damaging cat.

@RBTheMechanic

Жыл бұрын

But there’s no misfire or oil in spark plug tubes

@mkrp4

Жыл бұрын

@@RBTheMechanic That's was one of the issue of the 2005 RAV4 I was working on (although minor) Valve cover gasket is next on my list with PCV valve to manifold hose disconnected at manifold (customer is on tight budget!) Code P0171 fix on it kzread.info/dash/bejne/p4dnq8Wscqyncag.html

@RBTheMechanic

Жыл бұрын

@@mkrp4 yup could be the issue good information to be away tho I see people drive around with heavy misfire and they lack to repair the issue then it gets more costly

@arturozarate1752

Жыл бұрын

You are correct. Quite often that is the case with DOHC engines.

@randy1896

Жыл бұрын

@@RBTheMechanic That’s what my reply is always. People saying coolant leak into cylinders BUT coolant level is the same & oil looks great

Is this supposed to be done while the engine is on operating temperature or when it's cold? And is the engine turned on or off

@RBTheMechanic

2 ай бұрын

Cold

Are you cycling the car on and off between cleanings?

@RBTheMechanic

Жыл бұрын

No just clean as much as can then let it dry for a while

I replaced my 02 sensor both on my toyota camry 2003 2.4 but my engine light still on ,you think doing this clean my cat converter it can help?

@RBTheMechanic

9 ай бұрын

It can help

@joseperez2668

Ай бұрын

You need the scanner to erase the code.

Where are you located in California? I have Mini Cooper with 276A error code cat but it’s very difficult to get in to the area. The car needs to be lifted . If you can help I live in Los Angeles lemme know Thank you 🙏

@RBTheMechanic

Жыл бұрын

Sorry I’m east coast nj. Anyways I can check the code on Tuesday and get back to u

@ananias-

Жыл бұрын

Thank you that would be nice of you 🙏

@ananias-

Жыл бұрын

276A catalytic converter conversation. Is the code read on OBD scanner.

@RBTheMechanic

Жыл бұрын

@@ananias- ok so did u try cleaning downstream oxygen sensor or clean it that would be my first step

@ananias-

Жыл бұрын

I have not yet cleaned it , will clean and be back ! Some suggest to add lacquer thinner to gas tank what do you think ?

At 1:58you said work on it when it's cold , but then at 3:30 you say that the engine is hot. So did this work? It didn't look like you sprayed enough either.

@RBTheMechanic

Жыл бұрын

I meant to do it on cold and if it got it’s fine and let it dry anways u don’t need to spray lot I would do few times

Looks good as long as you don't blow that straw right into the hole😮

@RBTheMechanic

10 ай бұрын

Yeah

thank you for this vidio, I have a Camry 2011 xle, I had engine light on for sensors( P0138) , the mechanic changed 2 oxygen sensors. after changing second oxygen sensor , engine code popped up again with P0420 catalyst convertor error, could you please advise? I think it is because of second senor that he changed is not working properly!

@RBTheMechanic

8 ай бұрын

That could be possibility but u need to hook up scan tool and check live data other wise it might just need catalytic replacement

Can I use a high pressure water hose on top

@RBTheMechanic

Жыл бұрын

No way just do this or crc that’s good enough

How long to wait to drive the car after you clean the catalyst

@RBTheMechanic

Жыл бұрын

Give it few hours to dry off even if u leave it over night is best

@trini_boi2414

Жыл бұрын

@@RBTheMechanic can I do this with a hot engine? I plan to do this at night after I run errands and let it sit overnight then run the car next morning?

I did it Yesterday (04/21/24) and after that was white smoke coming out I hope it fixes it light off for now

@RBTheMechanic

Ай бұрын

Oh ok yeah smoke will go away

Remember people hold the can upward.

@RBTheMechanic

2 жыл бұрын

It shoots as much as it got in the barrel for the moment

@leepeezy

2 жыл бұрын

Lol

Thanks will do this

@RBTheMechanic

Жыл бұрын

Ok

Any tips I have a 05 honda odyssey wit that code p0420 236k miles I erase code wit obd reader drive for 170 miles then check engine light turns on again should I replace the catalytic or any sensors ?

@RBTheMechanic

Жыл бұрын

Start with new sensors down stream before u replace the catalytic u have lot of mileages u might have to proceed eventully to replace it

@erikavila1726

Жыл бұрын

@@RBTheMechanic down stream front or rear or both sensors Nd should it be bank 1 sensor 2 or it don't matter what sensors is changed

@RBTheMechanic

Жыл бұрын

@@erikavila1726 depends on which bank u have code for

@erikavila1726

Жыл бұрын

@@RBTheMechanic code p0420 says catalyst system efficiency below threshold bank 1 any idea what sensor it would happen to be

@RBTheMechanic

Жыл бұрын

@@erikavila1726 ok bank one is in the bank by firewall and it’s the 2nd sensor

You can start with this method but if the catalytic converter has overheated on the inside it will melt the honeycomb and you'll have the code returning over and over usually after a few days or so sometimes a little more. Another thing you can try is when you get to a half a tank of gas full literally buy a gallon of lacquer thinner and pour it in the gas tank and then fill it the rest of the way to a full tank of gas and drive 150 Miles or more on the highway or use a tool to set your RPM at about 4,000 for 30 minutes and it will clean out the cat., Although the best way is to take the cat. off the car and soak the lacquer thinner through the entire catalytic converter from top to bottom and then use a soap solution( like some dish soap or liquid laundry detergent and water to clean that out afterward then spray out with hose and let it dry and then reinstall it. If you're just trying to pass smog most of those ones that claim it will clear the code like cataclean or CRC etc. will work to clear the code to pass smog but usually the check engine light will come back on later which is fine if you can get your smog certificate and register the car. I've done this and it works but again if it is melted on the inside it will only clear at temporarily and to do a long-term fix you would need to replace the cat any welder at a muffler place that does catalytic converters could tell you if it's melted buy inspecting it from the outside. As crazy as it may seem, if you Google it,it will literally come up with the voice confirming that it works stating verbally the paragraph with instructions of the lacquer thinner method. If your catalytic converter is not melted then I would recommend doing this every 3 months to keep it from ever needing to be replaced.

@RBTheMechanic

6 ай бұрын

It worked well for me

@mrvans2005

5 ай бұрын

Yeah If you want to fu*k up your engine insert lacquer thinner. How stupid do you have to be??

Did you spray the whole can at once?

@RBTheMechanic

2 жыл бұрын

Nooo only sprays 3-4 large sprays

@devonmateo759

2 жыл бұрын

@@RBTheMechanic 3-4 large sprays then let it sit for an hour?

@RBTheMechanic

2 жыл бұрын

@@devonmateo759 yup

I have 2 bottles of CRC Mass Air Flow Sensor Cleaner. Will that work?

@RBTheMechanic

Жыл бұрын

U don’t need 2 bottles couple of spray that’s it

@MikeKollin

Жыл бұрын

@@RBTheMechanic OH thanks... I didn't mean I would use 2 of them. I just meant I had 2 and wanted to know if that stuff would work! Thanks! Appreciate it!

Bro I have TOYOTA Avalon and having Check engine alarm of dirty catalytic converter, can I solve that using this ?

@RBTheMechanic

Жыл бұрын

Start with doing rear oxygen sensor change and then second attempt this service u can also buy some edditives for fuel injection

will this work for 2001 4 cylinder Camry?

@RBTheMechanic

Жыл бұрын

Diffrent set up but clean the sensors on those also

Why has no one inserted a borescope to actually inspect the catalyst before all the mystery treatments?

@RBTheMechanic

7 ай бұрын

U can do that as well