2024 Hyundai P0430: What It Means & Is It Safe to Drive?
P0430 on the 2024 Hyundai: Catalyst System Efficiency Below Threshold (Bank 2). Here's what it means, what usually causes it, what repairs typically cost, and whether it's safe to keep driving.
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What this code means
Same as P0420 but for bank 2. The catalytic converter on bank 2 is not operating efficiently.
Common causes on the 2024 Hyundai
- Failed catalytic converter (bank 2)
- Faulty O2 sensor(s)
- Exhaust leak
Symptoms
- Check Engine Light
- May fail emissions
Typical fixes
- Replace bank 2 catalytic converter
- Replace oxygen sensors
- Repair exhaust leaks
Repair cost range
For a 2024 Hyundai, repairs for P0430 typically fall between $400 and $2400, depending on the root cause and labor rates in your area.
Known issues on Hyundai
Hyundai Lambda V6 engines trigger P0430 at high mileage. The same oil consumption concerns that apply to P0420 on Theta-II 4-cylinder engines also apply here on V6 models.
Most commonly affected models
Sonata V6 2006–2010Santa Fe V6 2007–2012Azera 2006–2011