Why am i getting p0420 and p0430 code at the same time? cause & fixes I got a check engine code po420, has anyone had the same problem ? if Po420 code...fixing it with new catalytic converters. not hard to do
Po420 | 2016+ Honda Civic Forum (10th Gen) - Type R Forum, Si Forum
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Why am i getting p0420 and p0430 code at the same time? cause & fixes
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