Tracking P0455 on Your 2022 Chevrolet Camaro
A P0455 on your 2022 Camaro means the ECM found a large EVAP leak. Your 6th-generation Camaro may still be within GM's basic warranty depending on mileage. The gas cap is the simplest explanation—check it first.
Evidence
- Check engine light with P0455
- Possible P0449 companion code
- Faint fuel odor
- Gas cap not clicking
Causes by Probability
- Gas Cap Seal (Very High Likelihood): Loose or defective. Tighten or replace ($10–$25).
- Vent Valve Solenoid (Medium Likelihood): GM's vent solenoid. $100–$200 if out of warranty.
- Purge Solenoid (Medium Likelihood): Stuck open. $80–$180.
- 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 persists, check warranty status and visit a Chevy dealer. The emissions warranty covers this through 2030.
Warranty Coverage
GM's basic warranty (3yr/36k) runs through 2025. The federal emissions warranty (8yr/80k) covers EVAP through 2030.
Safe to Drive?
Yes. P0455 has zero effect on the Camaro's performance, whether you have the turbo-4, V6, V8, or supercharged ZL1.