2022 Hyundai Kona P0456: Very Small EVAP Leak Repair

Investigating P0456 on Your 2022 Kona

Your 2022 Kona (1st generation, OS) has flagged P0456—a very small EVAP leak. The subcompact SUV's 2.0L MPI (or 1.6L turbo N Line) uses a standard EVAP system with threaded gas cap. Well within Hyundai's 5yr/60k warranty.

Clues

• Check engine light on
• P0456 stored
• No drivability issues
• AWD (if equipped) works normally

Causes

1. Gas Cap Seal (High Likelihood): Loose or debris. $0 warranty.
2. Purge Control Solenoid Valve (High Likelihood): Standard failure. $0 warranty.
3. Canister Close Valve (Medium Likelihood): Vent control. $0 warranty.
4. EVAP Hose (Medium Likelihood): Connection. $0 warranty.
5. FTP Sensor (Low Likelihood): Sensitivity. $0 warranty.

What to Do

1. Reseat gas cap
2. Warranty appointment—Hyundai 5yr/60k through 2027
3. Free repair

Cost

• Under warranty: $0
• 5yr/60k through 2027
• Federal emissions through 2030

Can I Drive?

Yes. P0456 has zero performance or safety impact.

Warranty

Hyundai's 5yr/60k through 2027. Federal emissions 8yr/80k through 2030. You're well covered.

Frequently Asked Questions