my first CEL with turbo

[carboncelicagt]

Got a p 420. The reader read "catalyst" I'm guessing its talking about the catalytic converter. So whatcha y'all think. Am i just going to have to live with this code, or will it go away when i tune? Could this be from running rich and im killing the cat? But then why would i not get the running rich code...

The odd thing is i only get it when its either raining or snowing and water kicks up to the bottom of the car.

[EastcoastSpeed]

well look to see that everything is in there tight , and yes running rich will eventualy "kill" the cat but its not a bad idea to replace with a high flow cat anyway later down the road.