Tracking P0455 on Your 2022 Nissan Maxima
A P0455 on your 2022 Maxima indicates the ECM found a large EVAP leak. Your Maxima with the 3.5L V6 and CVT may still be within Nissan's basic warranty. The gas cap is the simplest cause to check first.
Evidence
- Check engine light with P0455
- Possible fuel odor
- Gas cap not clicking
- Emissions test failure
Causes by Probability
- Gas Cap Seal (Very High Likelihood): Loose or worn. Tighten or replace ($10–$25).
- Vent Control Valve (Medium Likelihood): Nissan's vent valve. $120–$220 if out of warranty.
- Purge Volume Control Valve (Medium Likelihood): PVCV stuck open. $100–$200.
- Vapor Line (Low Likelihood): Cracked. $80–$200.
- Charcoal Canister (Low Likelihood): Saturated. $200–$350.
What to Do
Tighten the gas cap and drive 2–3 days. If P0455 stays, check warranty status and visit a Nissan dealer.
Warranty Coverage
Nissan's basic warranty (3yr/36k) runs through 2025. The federal emissions warranty (8yr/80k) covers EVAP through 2030.
Safe to Drive?
Yes. P0455 doesn't affect the Maxima's V6 or CVT.