Is there anything I can do to stop my catalytic converter from eroding? (See pic)

@m.wynn has boiled his before .

It's gotten him through the NY inspection 2 cycles now.

He'll be along eventually and can show you his home brew boiling method.

 

Thank you for the image, though it is hard to see if the Cat is eroding, or if it is just plugging up with carbon and SAPS.

If the CAT in that image is under a year old, then installing a OCC would be a good idea, even if it didn't prevent future issues.

Some have switched to a heavier oils, done oil flushes and additives, some have tried piston soaks, some replaced the valve stem seals, some have soaked the cat to remove the build up, the list goes on and you may want to try all of the options, or spend 2k every year on a cat.

What weight/brand and type of oil do you currently use?

Have you tried engine flushes or piston soaks to potentially mitigate the oil consumption issue?

 

What catalytic converter is it? Is it a Toyota OEM replacement or aftermarket?

 

https://priuschat.com/threads/prius-running-without-catalytic-converter-assembly.217623

Sounds like a Toyota Dealer installed OEM catalytic converter, still under CARB warranty.

 

PLEASE STOP posting about the same subject in multiple threads.

This should have gone in the OTHER cat converter thread that you started.
And some of those questions have already been answered there.

For instance, the catch can mod is NOT intended to protect the cat; it is there for other reasons.

 

Since it's under warranty, then the dealer should be replacing it for little or nothing.

 

Under warranty, so the cat replacement issue is cured?
Yet, OP is concerned that there is an underlying problem?

My 2 cent comment would be, noting the OP oil use comment, would be to first do a leak down test.
See if there is a head gasket or valve stem seal issue leaking oil into the exhaust chamber, thereby clogging the cat.

Also noting the OP states "keeps clogging", so how often?
Catch cans can help reduce the amount of oil recycling through the heads and intake, with a cost of around $100 or $200.
The "old style" full throttle "tuneup" might also help, in other words race around/ accelerate aggressively ever so often.
Also inspecting the spark plug condition may add some insights, inspecting now and after the tune up.

Yet repeating a leak down test is where I would start and I might doubt that would be a warranty covered test, but ask the dealer.

Good luck.

 

Last time i looked at a map, The OPs location put them behind the tinsel curtain, so OCCs are a no-go.

I'm very skeptical of a car that's burning sooo much oil that it's fodding out a cat in 2 years.....in California.
Is San Bernardino county asking you if they can borrow your car for mosquito control?
How is it POSSIBLY passing a smog test burning that much oil?

The first thing I would do is close the loop on the Toyota warranty thing....AT ANOTHER TOYOTA DEALER.
If they fix it?
You're good to go.

If they don't, then you're going to have to navigate the wonderful world of cat replacements in the PRC, for G2 owners, and I would lean away from continuing to pour money into the car at the dealer.

If Toyota won't fix it, see what 2-3 independent muffler shops in your area have to say about it.
They'll be a little surprised at how quiet your car is when you drive up, but they will be able to close the loop on what is going on with your cat (or O2 sensor.)

Good Luck!

 

look at the brighr side, no one has stolen it