Tracking Down P0446 on Your 2022 Mitsubishi Eclipse Cross
A P0446 code on your 2022 Mitsubishi Eclipse Cross indicates an EVAP vent control circuit malfunction—not a leak. The Eclipse Cross uses a 1.5L turbocharged engine with a canister vent control valve and purge control solenoid managing fuel vapor containment.
Your Eclipse Cross should still be under Mitsubishi's generous warranty coverage for this repair.
Clues You May Notice
- Check engine light illuminated with P0446
- Difficulty filling the fuel tank or pump clicking off early
- Failed emissions inspection (EVAP monitor not ready)
Most Likely Culprits
- Canister Vent Control Valve (High Likelihood): The valve sticks or fails electrically. $120–$200 for parts plus $80–$150 labor if out of warranty.
- Vent Valve Wiring or Connector (Medium Likelihood): Corrosion or damage to the connector near the charcoal canister. $50–$150 for repair.
- Purge Control Solenoid (Medium Likelihood): Incorrect purge flow can trigger vent circuit codes. $80–$180 for replacement.
- Charcoal Canister Issue (Low Likelihood): Saturated or cracked canister from fuel overfilling. $200–$400 for replacement.
- ECM Software (Low Likelihood): Calibration update may resolve false triggers. Free reflash if available.
Diagnostic Approach
A Mitsubishi dealer will use MUT-III to actuate the vent valve and check circuit response. Resistance testing and connector inspection at the canister are standard first steps.
Warranty Situation
Your 2022 Eclipse Cross is covered by Mitsubishi's 5-year/60,000-mile basic warranty through 2027. EVAP components are covered. The federal emissions warranty (8 years/80,000 miles) provides additional coverage through 2030.
Cost Without Warranty
If outside warranty: $120–$350 total depending on the failed component. The vent valve itself is the most common and least expensive fix.
Safe to Drive?
Yes. P0446 doesn't affect the 1.5T engine, S-AWC all-wheel drive, or any driving systems.