Hi,
The 61-11 is related to the vehicle stability assist. That isn't tied to the P0430. That code indicates the bank two catalytic converter is operating below the threshold.
Does, that mean it needs to be replaced? Oftentimes, it does. However, before replacing the converter, try this.
Fill the tank with premium fuel and get a good quality fuel injector cleaner. Drive the vehicle for approximately 50 to 100 miles then clear the code. See if the code comes back.
Let me know if that helps.
Take care,
joe
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Friday, May 12th, 2023 AT 9:15 PM