code po420 cats help please
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From: Boston
code po420 cats help please
I scanned my car and this code came up for the cats, but I want to go to the dealership knowing what I need so they don't start giving me b/s answers and overcharging me..any one have some ideas of what could be wrong..car has 26k miles on it
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Nov 9, 2020 10:27 AM