P0430 Catalyst System Low Efficiency Bank 2 Code Back
Thread Starter
Melting Slicks
Joined: Aug 1999
Posts: 3,204
Likes: 1
From: Indiana
P0430 Catalyst System Low Efficiency Bank 2 Code Back
Well i thought after i cleared it a week ago i was ok. But a week later and 125 miles later its back. Might be a bad 02 sensor. I hate taking it to the dealer. About 2000 miles ago i added a NPP exhaust to the car. The flaps are open all the time. Wonder if that has anything to due with the code 
Last edited by Vette Nut; Aug 7, 2010 at 10:57 PM.
Melting Slicks
Joined: Oct 2005
Posts: 2,515
Likes: 3
From: Goleta California
Thread Starter
Melting Slicks
Joined: Aug 1999
Posts: 3,204
Likes: 1
From: Indiana
Melting Slicks
Joined: Oct 2005
Posts: 2,515
Likes: 3
From: Goleta California
#09-06-04-011A: Malfunction Indicator Lamp (MIL) Illuminated, DTCs P0420 and/or P0430 Set (Reprogram Engine Control Module (ECM)) - (Apr 3, 2009)
Subject: Malfunction Indicator Lamp (MIL) Illuminated, DTCs P0420 and/or P0430 Set (Reprogram Engine Control Module (ECM))
Models: 2007-2008 Chevrolet Corvette ZO6
2009 Chevrolet Corvette ZO6 Built Prior to VIN Breakpoint 95112736
with 7.0L Engine - RPO LS7
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Melting Slicks
Joined: Sep 2008
Posts: 2,360
Likes: 59
From: San Jose California
I had NPP opened from day one, not a problem. As mentioned earlier it sounds like either a rear O2 or a cat. I don't take my car to the dealer anymore and it only has 7500 miles on it, so I don't blame you there. You can swap the rear O2's and see if you get the code for the other bank. If you do you need a new O2 senosr, if not then it looks like the cat which would be covered for the federal emissions time period.
DJ
DJ
Intermediate
Joined: Dec 2008
Posts: 39
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From: Dearborn MI
Has anyone swapped their O2 sensors after getting this code?
Looks like the TSB is for Z06's only. I have an '08 convertible.
I started getting this code a few weeks after putting headers on. I've cleared it a couple times, but it keeps coming back. I know you can tune it out, but I'm wondering if it might be the O2 sensor itself. If I get motivated enough, I might get under the car and swap sensors, unless someone else has done this already.
Looks like the TSB is for Z06's only. I have an '08 convertible.
I started getting this code a few weeks after putting headers on. I've cleared it a couple times, but it keeps coming back. I know you can tune it out, but I'm wondering if it might be the O2 sensor itself. If I get motivated enough, I might get under the car and swap sensors, unless someone else has done this already.
