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code P0430

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Old 10-27-2011, 09:17 AM
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Default code P0430

Where do I start ? I have no idea what to do or try. Car is 100% stock with 97,XXX miles
Old 10-27-2011, 09:57 AM
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That code is for your bank 2 catalytic converter being inefficient. If your car is a 2002, take it the dealer and have them replace the converter for free. If the car is a 2001 or older, you're going to have to replace the converter.
Old 10-27-2011, 11:29 AM
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Is that the passenger side ? How can I get it replaced for free ? It is an 02
Old 10-27-2011, 12:34 PM
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10 year 100,000 mile replacement on the cats there is a TSB on them for going bad all the time
Old 10-27-2011, 12:48 PM
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Unless you have to take a sniffer test, you could just ignore it, and if you have an OBD scan test you could just get it tuned out. The other option would be to replace the cat.
Old 10-27-2011, 01:22 PM
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TSB ? What is that ?
Old 10-27-2011, 01:42 PM
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Originally Posted by jaysan
TSB ? What is that ?
technical service bulletin
Old 10-27-2011, 01:43 PM
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Technical Service Bulletin

All Dealers have them. Its not a recall but more like a FYI on common issues as well as direction on how to service them.
Old 10-27-2011, 03:11 PM
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Does it matter if I have an borla cat back and SLP lid lol the lid has the AIR connection
Old 10-27-2011, 03:18 PM
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i'd check the O2 sensor before replacing the cat. could save you a lot of money
Old 10-27-2011, 04:58 PM
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Originally Posted by 98TAjwh
i'd check the O2 sensor before replacing the cat. could save you a lot of money
the o2 sensor is doing its job telling the pcm that the converter is junk. throw a converter on it. or take it in.
Old 10-28-2011, 12:45 PM
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Originally Posted by 98TAjwh
i'd check the O2 sensor before replacing the cat. could save you a lot of money
1. It is IMPOSSIBLE for an O2 sensor (catalyst monitor in this case) to set a catalyst inefficiency DTC.

2. It will only cost him money. The converter replacement will be FREE!

jaysan - GM extended the warranty coverage on catalytic converters on the 2000-2002 LS1 Camaro/Firebird to 10 years or 120K miles, whichever occurs first. As long as your car wasn't bought in late 2001, you should still be covered. Contact your local GM dealer about the in-service date on your car. If it went into service after Oct 28 2001, it will be covered free of charge.
Old 10-28-2011, 05:07 PM
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Originally Posted by Marc 85Z28
1. It is IMPOSSIBLE for an O2 sensor (catalyst monitor in this case) to set a catalyst inefficiency DTC.
explain plz.
Old 10-30-2011, 01:54 AM
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mine stated throwing the same code and i just threw some headers on and had the rear o2s deleted!
Old 10-30-2011, 11:03 AM
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well i had the same code about 3 years ago and it was because the rear O2 sensor was bad. the car passed the sniffer, but because of the code it failed. replaced it and the code went away. a fluke? maybe. just my experience.
Old 12-19-2011, 06:09 PM
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it was a bad cat . Car is fixed .
Old 12-20-2011, 12:45 AM
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did you atleast get it fixed under the warranty?
Old 12-20-2011, 11:15 AM
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Originally Posted by JaYZeig
explain plz.
Do a little research on how oxygen sensors work, how catalysts work, and how the catalyst monitoring system works. I'm not typing a book for you. The circumstances of the failure to the catalyst monitor would have to be so perfect that it is impossible to happen by chance.
Old 12-20-2011, 02:12 PM
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Originally Posted by kalh7
did you atleast get it fixed under the warranty?
yeah it was fixed for free .
Old 12-20-2011, 05:55 PM
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Originally Posted by Marc 85Z28
Do a little research on how oxygen sensors work, how catalysts work, and how the catalyst monitoring system works. I'm not typing a book for you. The circumstances of the failure to the catalyst monitor would have to be so perfect that it is impossible to happen by chance.
trust me you DO NOT need to explain to me how the stuff works..however, i DID post and told him to replace the cat because the o2 sensor was sensing low effiency from it.

what do you think post o2's are for? to look pretty?


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