P0455Aston-martin DbxYears: 1996 - 2026
Evaporative Emission Control System Leak Detected (Gross Leak)
Reviewed by ASE Certified Technician
What does this mean?
Code P0455 indicates the PCM has detected a large leak in the EVAP system. A gross leak is typically much easier to find than a small leak.
Disclaimer: This diagnostic code is part of the standard OBD2 system and can apply to Aston-martin Dbx models manufactured from 1996 to 2026. However, please note that the presence of this specific code depends on your vehicle's exact engine configuration, options, and production year.
Advertisement (In-Article)
Common Causes
Loose, damaged, or missing gas cap
Cracked or disconnected EVAP hose
Faulty EVAP purge control valve
Faulty EVAP vent valve/solenoid
Saturated or damaged EVAP charcoal canister
Symptoms to Watch For
- Check Engine Light is illuminated
- Strong fuel odor from vehicle
- Failed emissions test