What Does P0430 Mean on Your 2022 Hyundai Santa Fe?
Your 2022 Hyundai Santa Fe has triggered a P0430 code, indicating the catalytic converter on Bank 2 isn't performing efficiently. The 2022 Santa Fe comes with a 2.5L naturally aspirated 4-cylinder (Smartstream) producing 191 horsepower, or a 2.5L turbocharged 4-cylinder producing 281 HP. Hybrid models use a 1.6L turbo with an electric motor. On these inline-four engines, Bank 2 refers to the secondary catalyst monitoring position.
At 2-4 years old on the updated platform with the new Smartstream engine, the 2022 Santa Fe is more likely experiencing a sensor or software issue than actual converter wear.
Symptoms You May Notice
- Check engine light on
- Mild fuel economy decrease
- Possible sulfur smell
- Slight hesitation during acceleration
- Emissions test failure
Common Causes of P0430 on the 2022 Santa Fe
- Faulty downstream O2 sensor — On a newer vehicle, sensor malfunction is a top suspect.
- ECM software calibration — The Smartstream engine may benefit from calibration refinements.
- Exhaust leak — A minor connection or gasket issue.
- Catalytic converter defect — Manufacturing defects are uncommon but possible.
How to Diagnose the Problem
- Retrieve all DTCs
- Monitor O2 sensor data
- Check for Hyundai TSBs for the 2022 Santa Fe
- Inspect exhaust connections
- Verify ECM software version
Repair Options
- O2 sensor replacement: $120–$280.
- ECM software update: $0–$100.
- Exhaust repair: $80–$300.
- Catalytic converter: $600–$1,500.
Cost Breakdown
- Under warranty: $0
- Out-of-warranty: O2 sensor $120–$280, converter $600–$1,500
Your 2022 Santa Fe should be covered under Hyundai's 5-year/60,000-mile bumper-to-bumper warranty and the federal emissions warranty. Visit your dealer for warranty-covered repairs.
Prevention Tips
- Follow the maintenance schedule
- Use quality fuel
- Allow dealer software updates
- Address check engine lights promptly
- Keep up with oil changes