Trying to wrap my head around fault code P0430 and P0420

[mump]

Originally Posted by KRAM36

Oh, yes this was another fix I read about. I'll clean it today. I forgot about that one.

I believe I have read on here that it can only be cleaned so many times. When I first got my porsche 4 years ago, it had a rough, jumpy idle along with a code related to the MAF. I cleaned it along with the TB, which fixed it up until this summer when I was getting the codes. I tried cleaning it again, was a no-go this time.