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P0430 code

   
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Old 02-01-2018, 05:27 AM
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Default P0430 code
I have a 2004 cts 3.6 liter.The p0430 code keeps kicking on the check engine light I can reset the light and it will stay off two or three days but come back on sometimes it only stay off for a day any suggestions on what the problem might be any help would be greatly appreciated
 
Last edited by Rog; 02-02-2018 at 04:31 AM.
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Old 02-03-2018, 02:03 PM
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Drivers side catalytic converters.
 
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Old 02-03-2018, 02:04 PM
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Drivers side catalytic converter.
 
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Old 02-06-2018, 09:49 AM
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It's probably a bad 02 sensor rather than the cat itself. But the cats on the cst can become clogged so check also.
 
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