A large leak has been detected in the EVAP system. Unlike the small leak code P0442, a large leak suggests a significant opening in the vapor recovery system, often as simple as a missing gas cap.
Find certified mechanics near you who can diagnose and repair P0455.
For informational purposes only. Diagnostic trouble codes are starting points for diagnosis, not definitive answers. Always consult a certified mechanic for proper diagnosis and repair. Estimated costs vary by vehicle, location, and shop rates.