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Hey everyone, first off thanks in advance for any help or advice anyone can provide. I have searched and read a lot already and I guess am just looking for any advice or opinions before I go get porked by a repair shop if I don't need to.

Was driving home yesterday and my check engine light came on. Went to Auto Zone, they ran their little cpu on it and returned the code P0430.

From what I have gathered this could mean 1 of 2 things.

1. I need a new catalytic converter. I am at 7 years and 96k so I am screwed on the warranty.

2. Bad o2 Sensor(s).

I guess my question is, should I try replacing all my o2 sensors before I take it into a shop, pay $120 for a diagnostic that tells me to spend another $200 on o2 sensors, or tells me I need to drop $600+ on a new cat converter?

Or just replace them myself, see if the check engine light goes off and skip the diagnostic?

If replacing them myself, does anyone know which one(s) to start with? and is this Mopar 56029049AA Oxygen Sensor: Automotive is what I need?

I am not an auto repair guru and don't know much about o2 sensor(s). Are they all the same? Or are there different ones depending on which one you need to change?

At the end of the day, I am jsut trying to not get ripped off while trying to fix this issue. Any advice is appreciated.

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