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Old 07-17-2018, 11:07 AM   #2
TiberiusBoxster
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Join Date: May 2018
Location: Northern VA
Posts: 56
Quote:
Originally Posted by avanmeerbeke View Post
Hello,
Quick question probably already answered before....
I've been getting fault codes P0420/P0430 (cat. conv. eff. bank 1 and 2).
Any ideas?
Thanks for your help.
Welcome,
I had the same code P0430. I cleaned my mass air flow sensor with cleaner and cleared the code. Code did not come back. Won't work every time, but that is where I would start. Our sponsor has a how-to on cleaning the sensor. It is very easy to do. Good luck.

TB
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