Dump a gallon of lacquer thinner in your gas tank and drive it. That normally clears the code for about 2,000-5,000 miles. Also when the light comes on your catalytic converter is still operating at 95% efficiency. These Siennas are very sensitive to throwing these codes. Get spacers for the oxygen sensors at $15 and install them and this normally solves the problem.

@biglefty08

17 күн бұрын

I get this code every couple thousand miles, and just reset it. Should I do a pressure test on the Cat before installing spacers??

@Workingcockers

17 күн бұрын

@@biglefty08 personally I would not. I installed spacers and that was 10,000 miles ago. The code has not come back yet and probably won’t. I’ll still put a gallon of lacquer thinner in every 30,000 just to keep my cat clear

@joepearlzz8504

2 күн бұрын

Can you drive with these codes on? For years? Without issues? Especially if at 95%?

@Workingcockers

2 күн бұрын

@@joepearlzz8504 yes

Always clean off rust rings b4 reassembling new gaskets or you will risk leaks down the road

Wow he really made this look like an easy job, ….however, because he also replaced the sensors it’s possible that replacing the catalytic converter may not have been necessary…..the code could have been caused by only 1 of the 3 parts being replaced and I have found it extremely rare for both sensors AND the converter to all have failed at the exact same time. This is a classic case of not diagnosing / troubleshooting and just throwing parts/$$ at the problem. Always bring your car to a diagnostic technician before going to a mechanic.

@a2zautomasters862

2 жыл бұрын

Thank you for your comment and I appreciate you watching my videos. That particular car was checked and diagnosed and the problem was the Catalytic converter however to get full warranty on Cat/converter we’re required to change O2 sensors on that exact Cat. I’m not just a mechanic I’m an educated tech and we have up to date state of the art equipment. We definitely don’t guess here.

@tomkoolman

7 ай бұрын

cuz he has a hoist and a shop

مبدع great job i just bought sienna for work and the check engine light came on with that code am about to buy the parts and do it my self thank you brother

@a2zautomasters862

3 жыл бұрын

Good luck bro. Thank you for watching and I do appreciate your comment. 🙏🏻🙏🏻🙏🏻

Great job. Thank you for sharing

Change the spark plugs behing the engine to fix the PO430 i found out the the hard way after pouring 2k on sensors and muflers and alot more items

@a2zautomasters862

Жыл бұрын

The main reason Cat/Converter go bad is bc of a bad tune up. So I always recommend a full tune up before a Job like that.

Where did you order the oem cat from

Show the part numbers well if you have them plz. People trying to fix the same car will need and appreciate part numbers on the screen or in the comments. Thanks.

@a2zautomasters862

2 жыл бұрын

@ 5:15 parts #’s are already showing. Make sure you watch the whole video so you wouldn’t miss any information. Thank you.

What 2 bolts did you use for the bottom hooking up to the exhaust because original has studs and nuts Thanks

@a2zautomasters862

Жыл бұрын

The new Cat doesn’t come with the studs so I used couple of old bolts I had laying around. Thank you for watching and I do appreciate your question and feed back.

@angtoni1

Жыл бұрын

Also do you happen to know the torque

@angtoni1

Жыл бұрын

@@a2zautomasters862 so the holes are threaded and what would the torque be?

I have a 2004 seinna CE and I am getting p0430 code for bank 2. I replaced both 02 sensors and still getting the light but it comes on thousand or more miles later after replacing both 02 sensor. Does this mean for sure it is the catalytic converter? Thank you for your time and your video is very helpful.

@simontong2954

Жыл бұрын

Only Toyota OEM O2 sensor are recommended, use other o2 sensor will definitely not work.

@a2zautomasters862

Жыл бұрын

Most likely it’s your Cat/converter

I have the same van p0430, I replaced the converter and sell code, replaced the oxygen sensors same problem. B2 s2 is always showing . 0.7v+ at all times.

Do all 3.3 v6 Toyota engines share all the same cats?

You cannot change just the sensor, we see it on the right, right? DO you have the part list numbers you have changed. What great you suggest for the sensor?

@a2zautomasters862

2 жыл бұрын

The problem should be diagnose right first to make sure what’s the actual problem is but if you changing the Cat/converter we always recommend change the sensors too. That’s how we get full warranty on converter. Denso is the brand to go. 234-9012 is top rear. 234-9042 is top front. 234-4168 is bottom front and 234-4512 is down rear.

@DulceMariaOfficial

Жыл бұрын

@@a2zautomasters862 I thought it was one sensor (maybe i need to re watch the video...lol)....are all these should be bought?

Would this code cause my 06 Toyota sienna to over heat

I live in a state that does not have any smog testing so if you have PO430 on a sienna is this really an issue or just keep driving. Please advise, thanks.

@a2zautomasters862

2 жыл бұрын

You don’t have to change it right away. I have seen ppl drive with them for years. Unless it gets clogged, then you will lose power and car wouldn’t drive as well.

@DulceMariaOfficial

Жыл бұрын

@@a2zautomasters862 how you can prevent clogging? Just found out my Sienna have that issue and we aren't able to fix it or buy another car. Thanks for the vid!!

@a2zautomasters862

Жыл бұрын

@@DulceMariaOfficial the short answer is clogging usually happens because of a bad tune up. Make sure tune up is done on time. Thank you for watching

@DulceMariaOfficial

Жыл бұрын

@@a2zautomasters862 oil and filter has to be changed on time any other thing? Like for example coolant, Air filter, etc.... thanks for your help!

@a2zautomasters862

Жыл бұрын

@@DulceMariaOfficial spark plugs, air filter, cabin filter and fuel filter if it’s not part of the fuel pump. That’s tune up. Coolant flush, power steering fluid flush, brake fluid flush, transmission service and rear differential service for AWD models. That’s preventive maintenance.

احكيلنا اشمعني العربيات الى حبيت تشتغل فيها معنك بتحب المراكب مره جربت تتعلم في الميكانيكا بتاعتها ❤

@a2zautomasters862

3 жыл бұрын

Abdo Adel والله دي قصه جت بالصدفه انا دراستي كانت اداره وحاسب الي في مصر و هنا في امريكا درست هندسه الالكترونيات و الكمبيوتر

@abdoadel8817

3 жыл бұрын

@@a2zautomasters862 انت بجد لازم تعمل لايفات والله

@a2zautomasters862

3 жыл бұрын

Abdo Adel باذن الله.

For the Catalytic Convert this for bank 1 rear Catalytic Converter does it matter if it is an AWD or FWD Catalytic Converter

@a2zautomasters862

2 жыл бұрын

The back one might be shaped definitely for AWD. Not 100% sure. Has to be looked up with vin#.

@robertthegeek

2 жыл бұрын

@@a2zautomasters862 yeah I know thanks for the feedback

How did you confirm the cat is actually bad? A lot of tines it isn't the cat, it's another issue upstream

@a2zautomasters862

Жыл бұрын

You have to make sure the car got a good tune up first. It’s the first thing to kill a Cat.

what kind of impact wrench is that

@a2zautomasters862

2 жыл бұрын

That’s a SnapOn 3/8 drive power ratchet.

Great job man

@a2zautomasters862

3 жыл бұрын

🙏🏻🙏🏻🙏🏻

I’m working on a 03 Camry with a v6 and it is popping a p0430 code. The car can go faster then 65-70.

@a2zautomasters862

Жыл бұрын

That’s because the cat/converter is clogged.

Can you explain more about how you diagnosed a bad cat? Based off the code? If the cat was indeed bad theres no reason to change sensors.

@a2zautomasters862

2 жыл бұрын

Thank you for your question, I’ll try to make a video about O2 sensors and Cat operation because its a large topic, but for a quick tip. Most of time when you have a P0430 or P0420 cat efficiency code, it’s usually the Cat converter problem. A lot of manufacturers recommend changing the O2 sensors b4 and after that cat to get the full warranty, just in case they were damaged and might damage the new Cat.

@kgnismo1546

5 ай бұрын

Eurotecstylo thats like saying when you do your oil change you dont change your oil filter. Why would you have an old o2 sensor on a brand new catalytic converter doesnt make sense might as well change all in one shot

Did that fix your P0430 problem?

@a2zautomasters862

2 жыл бұрын

Yes it did. Never came back.

What's the part denso part #?

Excuse me , I have the p0430 in my Toyota Sienna, I already changed Catalytic Converter, I check the oxygen sensor an it's good i also erased the code,but on the next day i checked an it appeared again, what would it be?

@a2zautomasters862

Жыл бұрын

Ok so P0430 is bank 2. The Cat/ Converter in the front just like the video, Did you change that? And which O2 sensor did you change ?

@cougarjimenez4549

Жыл бұрын

@@a2zautomasters862 I only changed the Catalytic Converter bank 2, the sensor it's good,but it still showing the code

@a2zautomasters862

Жыл бұрын

@@cougarjimenez4549 how did you check the O2 sensor? Most likely the down steam Sensor is no good.

@simontong2954

Жыл бұрын

@@a2zautomasters862 I will replace the Toyota OEM o2 sensor at the same time even it is expensive.

@a2zautomasters862

Жыл бұрын

@@simontong2954 that’s the right way to do it. 👍🏻

Whats the number of the cat?

how much does it cost to replace

@a2zautomasters862

3 жыл бұрын

Sorry for the late response. That converter was about $600 original from the dealer and labor was about $300.

@robertp9370

3 жыл бұрын

@@a2zautomasters862 I am about to buy a 2006 Sienna with 126000 miles. it has no issues with the catalytic converter and passes smog tests in california. My question is, I heard these siennas have 3 cats, which is the most common one that has problems on this Sienna? is it the one that you replaced? I'm wondering if I should have mine replaced before it starts having issues.

@a2zautomasters862

3 жыл бұрын

Hey @@robertp9370 ! I can’t really say if one goes bad more than the other, it depends on how was the car maintained and when a tune up was done. The main cause of Cats going bad is bad tune up. The third and last cat usually is the last to go bad. I wouldn’t change any of them unless you have a check engine light was a code otherwise, if it’s not broken, don’t fix it.

Easy job and expensive parts in CA. I hate fxxxing CARB regulation.

Do you know the part number is?

@a2zautomasters862

2 жыл бұрын

Parts # are in the video before the unboxing of parts.

Hi, this is FWD or AWD?

@a2zautomasters862

Жыл бұрын

AWD

I just find out I have both P0420 & P0430

@a2zautomasters862

Жыл бұрын

Most likely you will need both cat/converter