2004 Toyota Sienna P0430 Catalytic converter efficiency B2 

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

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.

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

Great job man

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.

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

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.

Where did you order the oem cat from

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

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.

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.

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.

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?

What's the part denso part #?

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

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

Did that fix your P0430 problem?

what kind of impact wrench is that

Whats the number of the cat?

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

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

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.

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?

how much does it cost to replace

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.

Hi, this is FWD or AWD?

Do you know the part number is?

I just find out I have both P0420 & P0430