P0455 on Your 2022 Mazda CX-30
A P0455 on your 2022 CX-30 means a large EVAP leak. Your SKYACTIV-G 2.5L (or 2.5 Turbo) is likely under warranty. Gas cap is the first suspect.
Symptoms
- Check engine light with P0455
- Possible fuel smell
- Gas cap issue
- EVAP readiness incomplete
Causes Ranked
- Gas Cap Seal (Very High Likelihood): Loose or worn. $0–$20.
- Purge Solenoid Valve (Medium Likelihood): Mazda purge valve. $120–$240 installed.
- Canister Vent Valve (Medium Likelihood): Seal failure. $110–$230 installed.
- Vapor Hose (Low Likelihood): Connection issue. $70–$180.
- Charcoal Canister (Low Likelihood): Rare. $180–$350 installed.
Warranty
Your 2022 CX-30 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 SKYACTIV engine, i-ACTIV AWD, or features.