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what does this usually mean?

Old Apr 24, 2007 | 05:17 PM
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Default what does this usually mean?

Well SES light came on the other day and turns out to be inefficient catalyst flow in bank 2. Now doesn't that usually mean my rear o2 sensor is bad? Or is there several other things I should look for?
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Old Apr 24, 2007 | 06:37 PM
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That pretty much means you have a bad cat.
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Old Apr 24, 2007 | 06:50 PM
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P0430? Usually bad passenger side cat. Stock cats are now covered for 10yrs/120K.
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Old Apr 24, 2007 | 06:54 PM
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Sweet! So I can just take it to the dealer and get that replaced for free?
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Old Apr 24, 2007 | 07:06 PM
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yes take it to the dealer. It shoudl be 100% free. If they try to charge you anything you tell them to suck a dick. Its the LAW!!!!!!!
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Old Apr 24, 2007 | 07:26 PM
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Just in case they don't know: http://img518.imageshack.us/img518/4605/gmletterle2.jpg
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