Solving P0455 on Your 2022 Mazda CX-9
A P0455 on your 2022 CX-9 means a large EVAP leak. Your SKYACTIV-G 2.5 Turbo producing 250 hp is unaffected. Gas cap is the first suspect.
Evidence
- Check engine light on
- P0455 stored
- Possible fuel odor
- Gas cap issue
Causes Ranked
- Gas Cap Seal (Very High Likelihood): Loose or worn. $0–$20.
- Purge Solenoid Valve (Medium Likelihood): Mazda purge valve. $130–$260 installed.
- Canister Vent Valve (Medium Likelihood): Seal failure. $120–$250 installed.
- Vapor Hose (Low Likelihood): Connection issue. $80–$200.
- Charcoal Canister (Low Likelihood): Rare. $190–$370 installed.
Warranty
Your 2022 CX-9 may still be under Mazda's 3-year/36,000-mile warranty. Federal emissions (8yr/80k) covers EVAP through 2030.
Safe to Drive?
Yes. P0455 doesn't affect the turbo engine, AWD, towing, or 3-row features.