New to Me 02 Avalanche - P0430 Cat Conv Perf Code

[Semicrazy]

Hello,



I just picked up a 02 Avalanche for the wife and not a week after having it set the SES light. The code that came up was P0430 Cat Conv Performance. A new Y-pipe from the dealer is 455 dollars plus tax and core, that is a little much for right now after just putting a down payment on the vehicle.



Since the vehicle has just over 100K miles I was thinking of getting rid of the cats, but I was just wondering if anyone had seen or knows anything about fooling the post conv O2 sensors?



Any thoughts or suggestions?



Thanks,

Nate

 

[WDixon27]

the cat could be getting weak id hit the dealer, theres a federally mandated converter 7 year 1xxk mile warranty on the converter, i can't remember the exact mileage it's 100-150k and depending on the dealer if you are close enough i think they'll do it anyway, had one done free on a jeep that was borderline outta warranty, i can't speak for chevys but aftermarket converters don't work worth a damn on bmws, you get maybe a year and the code comes back as the crappy little cat just gets weak

 

[MCummings]

Try that, and if not, for $500 or so you can get EFI live and tune it for better mileage...



Merrick