Investigating P0446 on Your 2022 Mitsubishi Outlander
A P0446 code on your 2022 Mitsubishi Outlander indicates an EVAP vent control circuit malfunction. The all-new 2022 Outlander is built on the Nissan-Renault CMF-C/D platform (shared with the Nissan Rogue) with a 2.5L four-cylinder. The EVAP system uses a canister vent control valve and purge control solenoid.
Mitsubishi offers an excellent warranty: 5yr/60k basic and 10yr/100k powertrain—one of the best in the industry. Your 2022 Outlander should be fully covered.
Clues and Symptoms
- Check engine light with P0446
- Fuel fill difficulty
- EVAP readiness monitor incomplete
- PHEV model: monitors run less frequently
Top Suspects
- Canister Vent Control Valve Failure (High Likelihood): First-year redesign may have early production variation. Replacement costs $110–$220 if not warranty-covered.
- Purge Control Solenoid Malfunction (High Likelihood): Sticking purge solenoid disrupts EVAP flow. Replacement runs $100–$200.
- Vent Valve Wiring or Connector (Medium Likelihood): Connector corrosion or damage. Repair costs $70–$160.
- EVAP Hose Connection (Medium Likelihood): New platform routing fitment. Repair runs $50–$120.
- Gas Cap Seal (Low Likelihood): Worn seal. Replacement is $10–$22.
How to Investigate
Under Mitsubishi's generous warranty, go to a dealer for MUT-III diagnostics. The 2022 Outlander is a first-year redesign—check for TSBs. MUT-III provides commanded valve testing for definitive diagnosis.
Warranty and Cost
Mitsubishi's 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 Outlander's engine, CVT, AWD, third-row capability, or PHEV operation.