Code P0430 Catalytic Converter Question
#1
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
So i got a check engine light + check VSC u know the standard crap and the code came back as P0430 catalytic converter bank 2....my mechanic thinks i need a new catalytic converter?? how can i know that is the problem for sure? ive read on here it could be many other things and i dont want to spend $300-400 and it not be the problem...ive also had an nvidia midpipe and tanabe exhaust on for a while but i doubt they have anything to do with it. I would appreciate ur feedback!
#3
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
I haven't kept up with the forums but I am pretty sure that replacing a CAT has never fixed P0430. I would try to check for exhaust leaks in you aftermarket exhaust first. Second consider to replace the O2 sensor down stream from the cats.
Trending Topics
#11
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
I've reset the lights 3 times in the span of a week and they kept coming back on with the same message. I was getting ready to schedule an appointment over at the dealership to get this taken care off. Yesterday however all the lights went off on their own...im assuming this means my catalytic converter isnt bad after all? This is confusing...
#13
Lead Lap
iTrader: (5)
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
I would have the dealer fix it now while it under warranty. Then to pay out of pocket when your out of warranty. Just cause it goes off doesnt mean it aint broken cause in due time it will come back. As when i had a bad cat 3-5days it be on. Then after that it goes off then right back on. Replace my HFC and since my last post till now no CEL P0420.
#14
Pole Position
iTrader: (5)
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
Besides maybe not passing inspection, what does running a bad cat do? I have no primary cats and just HFC in my JoeZ racing exhaust, so sometimes i get P0420 (O2 sims not working properly), but who cares. I dont get inspections stickers the easy way and the light on the dash occasionally doesnt really bother me much... haha