[Z06] P0420/P0430 Code What is it?
Thread Starter
Drifting
Joined: Apr 2005
Posts: 1,257
Likes: 695
From: Paducah KY
2023 C5 of the Year Finalist - Modified
P0420/P0430 Code What is it?
Never mind guys....should do research first and search for answers before I ask......got my info and what to do....thnx anyway....
Means TWC System Low Efficiency Bank 1 and Bank 2......now what does that mean????
I just put on Headers with no cats, no codes. Than I put on a new duct for my intake(much bigger) and it threw a code. I know it's probably flowing more air and caused the code but just want to make sure everything is okay before I clear it.
Means TWC System Low Efficiency Bank 1 and Bank 2......now what does that mean????
I just put on Headers with no cats, no codes. Than I put on a new duct for my intake(much bigger) and it threw a code. I know it's probably flowing more air and caused the code but just want to make sure everything is okay before I clear it.
Last edited by indebt; May 10, 2005 at 02:25 AM. Reason: Found info
Melting Slicks
Joined: Sep 2003
Posts: 2,911
Likes: 1
From: Augusta GA
St. Jude Donor '05-'06
Is it tuned? I have close to the same set-up. I put SIMS on the O2s untill it was tuned (removed) and threw no codes. How do you like the LGM LTs with no cats??? IMO they sound great!!! 
Dave
Dave
Pro
Joined: Jul 2004
Posts: 625
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From: Anaheim Hills CA
Originally Posted by indebt
Never mind guys....should do research first and search for answers before I ask......got my info and what to do....thnx anyway....
Means TWC System Low Efficiency Bank 1 and Bank 2......now what does that mean????
I just put on Headers with no cats, no codes. Than I put on a new duct for my intake(much bigger) and it threw a code. I know it's probably flowing more air and caused the code but just want to make sure everything is okay before I clear it.
Means TWC System Low Efficiency Bank 1 and Bank 2......now what does that mean????
I just put on Headers with no cats, no codes. Than I put on a new duct for my intake(much bigger) and it threw a code. I know it's probably flowing more air and caused the code but just want to make sure everything is okay before I clear it.
