Cats - Stock or High Flow...Codes?
Thread Starter
Drifting
Joined: Oct 2007
Posts: 1,673
Likes: 2
From: Titusville FL
Cats - Stock or High Flow...Codes?
If I replace my Stock Catalytic Converters with High Flow Converters will I get the dreaded 0430 and 0420 codes? All indications are that my stock cats are shot. I am getting the 0430 and 0420 codes. I replaced my rear 02 Sensors, but that did not cure the issue, I’m still getting the codes. So I figured replace the cats. A friend recommended going with the High Flows, but I’ve read on this forum issues with the Long Tube headers and High Flow cats resulting in having the rear 02 sensors tuned out/off. I would prefer not to have the 02’s tuned out or install 02 simulators. My 99 FRC is stock w/33K miles, Halltech Stinger, BBK Shortie Ceramic coated headers, Bassani X-Pipe and Cat Back.
Any solid advice would be appreciated.
Thanks
BUGZ
Any solid advice would be appreciated.
Thanks
BUGZ
Last edited by BUGZ; Feb 3, 2009 at 08:31 AM.
Le Mans Master
Joined: Dec 2008
Posts: 5,414
Likes: 25
From: Texas
more than likely you will set a 420/430 with aftermarket cats and rear o2 sensors.
from the sound of your post, I would suggest replacing the factory cats with another set. try to find someone close who is installing headers and buy their used factory cats.
from the sound of your post, I would suggest replacing the factory cats with another set. try to find someone close who is installing headers and buy their used factory cats.
Burning Brakes
Joined: Mar 2005
Posts: 766
Likes: 0
From: Mooresville NC
