Investigating P0446 on Your 2022 Genesis G70
A P0446 code on your 2022 Genesis G70 indicates an EVAP vent control circuit malfunction. The G70 uses the N3 platform with a 2.0L turbo four-cylinder or 3.3L twin-turbo V6. Genesis uses a Canister Close Valve (CCV) for vent control and a Purge Control Solenoid Valve (PCSV) for purge, monitored by the Fuel Tank Pressure Sensor (FTPS).
Genesis offers an industry-leading warranty: 5yr/60k basic and 10yr/100k powertrain. Your 2022 G70 should be fully covered.
Clues and Symptoms
- Check engine light with P0446
- Fuel fill difficulty
- EVAP readiness monitor incomplete
Top Suspects
- Canister Close Valve (CCV) Failure (High Likelihood): The CCV controls vent airflow. Replacement costs $120–$230 if not warranty-covered.
- PCSV Malfunction (High Likelihood): The Purge Control Solenoid Valve sticks, disrupting EVAP flow. Replacement runs $110–$210.
- FTPS Signal Issue (Medium Likelihood): The Fuel Tank Pressure Sensor provides faulty readings. Replacement costs $100–$200.
- CCV Wiring or Connector (Medium Likelihood): Connector corrosion or damage. Repair costs $70–$160.
- Gas Cap Seal (Low Likelihood): Worn seal. Replacement is $12–$25.
How to Investigate
Under Genesis' generous warranty, go straight to a dealer for GDS (Global Diagnostic System) testing. GDS provides commanded CCV, PCSV, and FTPS diagnostics. Genesis offers complimentary pickup and delivery service for warranty work.
Warranty and Cost
Genesis' 5-year/60,000-mile basic warranty should be active. The 10-year/100,000-mile powertrain warranty provides industry-leading coverage. All EVAP repairs should be free.
Safe to Drive?
Yes. P0446 doesn't affect your G70's engine, turbo performance, RWD/AWD, or sport-driving dynamics.