Diagnosing P0446 on Your 2024 Mitsubishi Eclipse Cross
A P0446 code on your 2024 Mitsubishi Eclipse Cross means the ECM detected a malfunction in the EVAP vent control circuit. This is a circuit fault, not a fuel leak. The Eclipse Cross uses a 1.5L turbocharged engine with standard Mitsubishi EVAP components: a canister vent control valve and purge control solenoid.
Everything is covered under warranty—head to your dealer for a free repair.
What You Might Notice
- Check engine light on with P0446
- Possible slow fuel filling
- EVAP readiness monitor not completing
Likely Causes
- Canister Vent Control Valve Defect (High Likelihood): Manufacturing variation or early failure. Warranty-covered replacement.
- ECM Software Update (High Likelihood): Revised EVAP monitoring calibration. Free reflash.
- Vent Valve Connector Issue (Medium Likelihood): Loose or improperly seated factory connection. Warranty-covered.
- Purge Control Solenoid (Medium Likelihood): Affects vent system readings. Warranty-covered.
- Charcoal Canister (Low Likelihood): Rare on new vehicles unless fuel was repeatedly overfilled. Warranty-covered.
Dealer Diagnostics
The Mitsubishi dealer will use MUT-III to command the vent valve, check circuit resistance, and verify wiring integrity. Software updates are checked first.
Full Warranty Protection
Your 2024 Eclipse Cross is under Mitsubishi's 5-year/60,000-mile basic warranty and 10-year/100,000-mile powertrain warranty. All EVAP diagnosis and repair is free.
Safe to Drive?
Yes. P0446 has no effect on engine performance, the S-AWC system, or driving safety.