986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Cat-bypass and PSE mod caused CEL

steve00s · 02-09-2006, 02:33 PM

I bought the code reader today. A pretty good investment with these code happy little buggers.

What I got was P1128 O2S RANGE 2 Cyl. 1-3 and P1130 O2S RANGE 2 Cyl. 4-6. Which as I understand it the air/fuel mix is too rich. I thought it would run lean if anything with the increased air flow unless the system is overcompensating for it.
I still don't think that the O2 sensors all just suddenly went out. I guess
I'll erase the codes and keep my fingers crossed. I am getting the GIAC upgade soon so maybe that will help.
Thanks.

02-09-2006, 02:33 PM	#8
steve00s Registered User Join Date: Oct 2005 Location: Seattle Posts: 352	I bought the code reader today. A pretty good investment with these code happy little buggers. What I got was P1128 O2S RANGE 2 Cyl. 1-3 and P1130 O2S RANGE 2 Cyl. 4-6. Which as I understand it the air/fuel mix is too rich. I thought it would run lean if anything with the increased air flow unless the system is overcompensating for it. I still don't think that the O2 sensors all just suddenly went out. I guess I'll erase the codes and keep my fingers crossed. I am getting the GIAC upgade soon so maybe that will help. Thanks.