Code P0430 Set w/ headers and cats
Thread Starter
Melting Slicks
Joined: Aug 2000
Posts: 2,304
Likes: 154
From: Green Bay WI
Code P0430 Set w/ headers and cats
Code is for "three way catalyst (TWC) low efficiency bank2"
From the service manual: "Conditions for setting the DTC: The PCM determines if the oxygen storage capacity of the catalytic converter has degraded below a calibrated threshold."
I've had the Dynatech headers and high-flow cats on for over a year, and never had any codes until last week when this P0430 code was set.
Anyone else have this with long tube headers and high-flow cats?
How did you fix it?
From the service manual: "Conditions for setting the DTC: The PCM determines if the oxygen storage capacity of the catalytic converter has degraded below a calibrated threshold."
I've had the Dynatech headers and high-flow cats on for over a year, and never had any codes until last week when this P0430 code was set.
Anyone else have this with long tube headers and high-flow cats?
How did you fix it?
Safety Car
Joined: May 2003
Posts: 4,961
Likes: 2
From: Vette-hid.com Lost in DFW texas
Cruise-In V Veteran
Cruise-In VI Veteran
Cruise-In VII Veteran
St. Jude Donor '06-'07
You need to get the car edited have code deleted. Common problem with header install.
Try just resetting the dic and see how fast it comes up. You might have a bad o2 sensor.
Try just resetting the dic and see how fast it comes up. You might have a bad o2 sensor.
Instructor
Joined: Feb 2005
Posts: 169
Likes: 0
From: Milford Michigan
I put the Dynatech Supermaxx system with high flow cats, x-pipe and Corsa Indy's in early May. Mine has thrown several (7 or 8) 0420 and 0430. Has to do with the high flow cats heating and effeciency. No problem, just reset. Can be edited out if it bothers you. All this is based on you not having tp pass emissions testing. That could be a different thing. My 2c.
Race Director
Joined: Oct 2002
Posts: 16,477
Likes: 26
From: Gone
CI 6-7-8-9-10 Veteran
St. Jude Donor '03
You could also unplug your rear 02 sensors and install a set of 02 sims. Cheaper than programming them out...but if you were planning on future tuning anyways, have them edited out then, it's the more elegant solution.
