Need a new cat, what brand?

[cnl390]

My Bank 2 Sensor 2 graph is all over the place (has been for at least a year), and although I still get 19-21 mpg I figure it's time to change it out.
I do not want to go to a dealer, and do not want to pay Toyota prices. What would be a good brand to buy?
Thanks

 

[zonianbrat]

What scan tool did you use to get the graph? Im curious as I have the p0420 code so I assume it is either cats or 02 sensors. Trying to figure out which. Debating on going to just have it smog checked. I know it will fail but maybe that will tell me if the cats are actually bad.

 

[alia176]

What scan tool did you use to get the graph? Im curious as I have the p0420 code so I assume it is either cats or 02 sensors. Trying to figure out which. Debating on going to just have it smog checked. I know it will fail but maybe that will tell me if the cats are actually bad.

P420/430 are telling you that your cats are dirty, and the O2 sensors are simply reporting that fact. Our vehicles are getting up there in age so this is normal. Although, I'm rather surprised that I'm not reporting those codes with 320xxx miles on the clock.

 

[Nostromo]

I just installed Eastern Catalytic Eco III direct fit cats. Rock Auto purchase. Not bad. I have a V6 so install was super easy. My Runner had 205k so it was time. The biggest difference was running temps. I never realized I was running hot until I changed the cats. Big difference on the gauge.

 

[cnl390]

I use an OBD Link LX, and I have been getting the code for quite some time now. I had rotator cuff surgery so I could not do the maintenance I normally would do myself so I took it to an auto shop. They did their scan, printed out the graph, and diagnosed a failed/failing cat.

 

[97hb]

Although, I'm rather surprised that I'm not reporting those codes with 320xxx miles on the clock.

I am also on stock oem o2 sensors and cats @ 385K although I attribute it to not injesting blowby! And I use cat destroying oil, mucho zddp!!!