how to fix the P0455 code on my Toyota Camry Seventh Generation (2012-2017)

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Connect the battery charger to maintain voltage during diagnostics.
• Ensure the vehicle is parked on a level surface and the engine is off.

2. Inspect and Replace the Gas Cap

• Sub-steps:
  • Remove the gas cap and inspect the rubber seal for wear or damage.
  • If the seal is worn, replace the gas cap with an OEM or compatible part.
  • Reinstall the gas cap securely and clear the trouble codes.

3. Repair or Replace EVAP Hoses

• Sub-steps:
  • Locate all EVAP hoses connected to the fuel tank, charcoal canister, and purge valve.
  • Inspect hoses for cracks, kinks, or disconnections.
  • If damage is found, remove the old hoses using a hose removal tool and replace with new hoses, securing with appropriate clamps.

4. Inspect and Replace the Purge Valve

• Sub-steps:
  • Locate the purge valve, typically found near the intake manifold.
  • Disconnect the electrical connector and vacuum hoses from the purge valve.
  • Remove the valve using a socket set and replace it with a new one, ensuring all connections are tight.

5. Test the System

• Sub-steps:
  • Reconnect all components and ensure there are no loose connections.
  • Start the engine and allow it to reach operating temperature.
  • Use a scan tool to monitor the EVAP system pressure and confirm the P0455 code is cleared.