P0455 — EVAP Emission Control System Leak (Large)

What does P0455 mean?

This code indicates a large leak has been detected in the evaporative emission control (EVAP) system. This is a more significant leak than indicated by P0442.

• Missing or severely damaged gas cap
• Major leak in an EVAP hose or component
• Damaged EVAP canister
• Faulty purge valve

Click steps to track your progress.

1. 1

   Check if the gas cap is missing or severely damaged. Replace if necessary.

2. 2

   Inspect all accessible EVAP hoses for large cracks or breaks.

3. 3

   Ensure the EVAP canister is securely mounted and free from damage.

4. 4

   Check the purge valve for proper function and sealing.