986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Trying to wrap my head around fault code P0430 and P0420

RandallNeighbour · 01-30-2015, 09:57 AM

I tell you the Porsche computer onboard our cars is a BIG FAT LIAR.

I got a MAF malfunction code when one of the oxygen sensors was fouled. Replaced all four sensors and the MAF was reading fine and voila! I get a lot more power and it purs like a kitten at idle.

01-30-2015, 09:57 AM	#12
RandallNeighbour Registered User Join Date: Jul 2004 Location: Houston, Texas Posts: 7,243	I tell you the Porsche computer onboard our cars is a BIG FAT LIAR. I got a MAF malfunction code when one of the oxygen sensors was fouled. Replaced all four sensors and the MAF was reading fine and voila! I get a lot more power and it purs like a kitten at idle.