Originally Posted by lscamaro
P0305 - Cylinder 5 Misfire
P0430 - Cat below efficiency
Come to think of it, I think I remember reading a few threads where the car will start to act weird and have the same symptoms you describe because of bad cats. Let me see if I can find the threads
I was one of those threads! Car sounds horrible and doesnt perform when you push the pedal right? I had 3 cylinder misfires, but it never said that I had something wrong with the cat.
My dealer replaced mine without me paying 1 cent. Best part is that I am full bolt on so they didnt blame any of it on any of the mods.
good luck dudddeee