P0430 on the Redesigned 2022 Toyota Tundra
A P0430 code on your 2022 Toyota Tundra indicates the ECU has found below-threshold performance from the catalytic converter on Bank 2. The 2022 Tundra was a complete redesign featuring the all-new 3.5L V35A-FTS twin-turbocharged V6 engine producing 389 horsepower (or 437 hp in i-FORCE MAX hybrid form), replacing the venerable 5.7L V8. On this V6, Bank 2 is the cylinder bank opposite cylinder 1.
As a relatively new vehicle with a brand-new engine platform, a worn catalytic converter is unlikely. Sensor issues, software calibration problems, or exhaust assembly defects are far more probable.
Symptoms You May Notice
- Check engine light on the dashboard
- Minimal performance changes
- Slight decrease in fuel economy
- Possible faint exhaust odor
- Emissions test failure
Common Causes on the 2022 Tundra
- Faulty Downstream O2 Sensor — A sensor defect on the Bank 2 rear oxygen sensor is the most common cause on newer vehicles.
- Twin-Turbo Engine Calibration Issue — The new V35A-FTS engine may have calibration nuances that trigger false catalyst codes. Toyota may have a TSB for a PCM reflash.
- Exhaust Leak on Bank 2 Side — With a turbocharged engine and complex exhaust routing, a small leak at any connection can affect sensor readings.
- Catalytic Converter Manufacturing Defect — Rare but covered under warranty if present.
Diagnosis Steps
Your 2022 Tundra is under both the factory warranty and the federal emissions warranty. Take it to the dealer first. They can check for TSBs related to the new engine, perform diagnostic tests using Techstream, and make any repairs at no cost.
If you want to pre-check, scan for all codes. On the twin-turbo V6, pay attention to any boost-related codes alongside the P0430. Monitor Bank 2 O2 sensors on live data if your scanner supports it.
Repair Options and Costs
- Warranty Repair (First Choice) — Cost: $0. Full warranty coverage on a 2022 model.
- O2 Sensor (out of warranty) — Parts: $75 to $190. Labor: $95 to $180. Total: $170 to $370.
- ECU Reflash — Free under warranty. $100 to $200 out of warranty.
- Catalytic Converter (twin-turbo V6) — OEM: $1,100 to $2,300. Aftermarket: $500 to $1,000. Labor: $250 to $500. The twin-turbo exhaust system is more complex and costly.
DIY Feasibility
On a vehicle under warranty, let the dealer handle it. The twin-turbo V6 exhaust system is significantly more complex than the previous V8, with turbo downpipes, wastegate plumbing, and tight packaging that make DIY exhaust work challenging.
Prevention Tips
- Follow Toyota's maintenance schedule for the new engine
- Use quality fuel, as the turbo engine is more sensitive to fuel quality
- Report any check engine lights to your dealer promptly
- Let the turbo engine warm up and cool down properly
- Keep records of all dealer service visits