P0455

2017-10-10

Description:

  • The fault code P0455 indicates that there is a significant leak or no flow detected in the evaporative emission control system. This may cause the vehicle to fail emissions testing or result in decreased fuel efficiency.

Possible Symptoms:

  • Illuminated check engine light

  • Strong fuel odor

  • Decreased fuel efficiency

  • Failed emissions test

Possible Causes:

  • Loose or damaged gas cap

  • Cracked or damaged fuel tank

  • Cracked or damaged evaporative emission canister

  • Leaking or disconnected hoses in the evaporative emission control system

  • Failed purge valve or vent valve

  • Failed fuel filler neck or fuel tank pressure sensor

Related Parts:

  • Evaporative Emission (EVAP) System: The EVAP system prevents petrol vapors from escaping into the atmosphere from the fuel tank and fuel system. Problems in this car's flow valve will lead to fuel loss

Possible Solutions:

  • Check and tighten or replace gas cap

  • Inspect fuel tank for cracks or damage and repair or replace as necessary

  • Inspect evaporative emission canister for cracks or damage and replace if necessary

  • Inspect all hoses in the evaporative emission control system for leaks or disconnections and repair or replace as necessary

  • Replace failed purge valve or vent valve

  • Replace failed fuel filler neck or fuel tank pressure sensor

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