Plugged in my scanner and it gave me this po430 bank 2?

2010 HONDA ACCORD
200,000 MILES • 3.5L • AUTOMATIC
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MORGANSMOMMY
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I have a 2010 Honda Accord v6 and I have took it to a mechanic shop and they replaced a vacuum leak and spark plugs and a coil in number 1 and I am still getting a misfire he said and so I plugged in my scanner and it gave me this po430 bank 2 threshold can you tell me what I need to do to fix my car only transportation I have to get to work I don't have a spouse to help meso I'm trying to get it fixed myself thank in advance I just need some help to fix it
Jul 18, 2026 at 7:11 PM
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MORGANSMOMMY
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Please forgive me if my question came to you twice didn't know if the first one went through when I got the ask a question email again i hope you have good day thank you.
Jul 18, 2026 at 8:58 PM (Merged)
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STRAILER
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  • 54,832 POSTS
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No worries, I can help you, the P0430 does not mean cylinder 2 is misfiring. It means the catalytic converter on Bank 2 is operating below its expected efficiency. Can you tell if the engine is misfiring, can you please upload short video of the engine running from under the hood so I can see/hear it? This will help us go in the right direction for the repair. I can tell you at 200k the cat might be worn out but lets see how the engine is running first.
Jul 20, 2026 at 2:40 PM
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