Code =??

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Apr 3, 2007 | 08:43 PM

2000Trans-Am

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From: Hartsville,SC

Code =??

Im throwing a P0430. I looked and it says that this code is a Catalyst system eff. threshold. bank 2. Anyone have any idea or suggestions as to what this means???

Apr 3, 2007 | 08:55 PM

2001NBMZ28

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From: Jacksonville, FL

Stock? Bad passenger side cat. http://img518.imageshack.us/img518/4605/gmletterle2.jpg

Apr 3, 2007 | 09:07 PM

2000Trans-Am

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From: Hartsville,SC

yeah my exhaust is stock....yea that letter sounds like what I have.. Well i'm planning replacing my stock exhaust system with a Corsa catback. That should clear the fault right?? Will any damage occur by ignoring this code until i get my new exhaust??

Last edited by 2000Trans-Am; Apr 3, 2007 at 09:13 PM.

Apr 4, 2007 | 12:33 PM

2001NBMZ28

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From: Jacksonville, FL

Catbacks don't go anywhere near the cats. Get the cat replaced to get rid of the code.

Apr 4, 2007 | 01:07 PM

Sharpe

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From: Southeastern IL

Quote:

Originally Posted by 2000Trans-Am

If your cat is bad, then getting a catback exhaust won't do anything at all. You have to replace the cat. They make high flow ones, but I don't know anything about them.

If your cat is clogged, then it will hurt power. Otherwise, no harm.

However, might the code be generated by a bad O2 sensor in back? Not sure. I don't have cats.

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