OBD Codes; Bad Cat??

RockinAZJK

Caught the Bug
Hey guys, so I’ve got some codes that have came up so I cleared them (OBD fusion & Bluetooth OBD scanner), all was well for about a month. Came back, cleared them again and came back in in a week or two this time.
Codes are:
P0420
P0430

From the sounds of it it’s both o2 sensors on bank 1 reading similar outputs. Seems like it might be a cat going out? Anyone have any other ideas? I’d rather not have to pull my entire post manifold exhaust out to replace a cat...


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