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P0430 Code 2009 Nissan Maxima

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Old 05-18-2024, 08:20 AM
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P0430 Code 2009 Nissan Maxima
2009 Nissan Maxima S, P0430 code
P0430: Catalyst System Efficency Below Threshold Bank 2

I know my catalyst system bank 2 is downstream because it’s bank 2 I just don’t know what part to buy to replace it? Is it the front right/left or rear right/left or something idk I just want to know what part to buy.
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Old 05-18-2024, 03:22 PM
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Actually bank 2 is at the front of the car and most likely, that cat by the radiator is toast, or at least mine was.
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Old 06-06-2024, 01:32 PM
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Originally Posted by LtLeary
Actually bank 2 is at the front of the car and most likely, that cat by the radiator is toast, or at least mine was.
I second this. Bank 2 is by radiator side to match cylinders *2* -4-6 while Bank 1 is on the firewall side to match cylinders *1* -3-5
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