P0455 Code: 2022 Mazda Mazda3 – What It Means & Cost to Fix

2022 Mazda3 P0455: Large EVAP Leak Repair

Investigating P0455 on Your 2022 Mazda3

A P0455 on your 2022 Mazda3 means a large EVAP leak. Your SKYACTIV 2.5L (or 2.5T) is likely under warranty. Gas cap first.

Evidence

  • Check engine light on
  • P0455 stored
  • Possible fuel odor
  • Gas cap issue

Causes Ranked

  1. Gas Cap Seal (Very High Likelihood): Loose or worn. $0–$20.
  2. Purge Solenoid Valve (Medium Likelihood): Mazda purge valve. $120–$240 installed.
  3. Canister Vent Valve (Medium Likelihood): Seal failure. $110–$230 installed.
  4. Vapor Hose (Low Likelihood): Connection issue. $70–$180.
  5. Charcoal Canister (Low Likelihood): Rare. $180–$350 installed.

Warranty

Your 2022 Mazda3 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 engine, i-ACTIV AWD, or any features.

Frequently Asked Questions

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