how to fix P0455 code in Toyota Camry XV50 (2012-2017)

Solution

1. Preparation

• Gather all necessary tools and parts.
• Disconnect the negative battery terminal to prevent electrical shorts.
• Ensure the vehicle is parked on a level surface and the engine is cool.

2. Inspect and Replace the Fuel Cap

• Tools Required: Adjustable wrench or ratchet with appropriate socket.
• Inspect the fuel cap for damage or wear. If damaged, replace it with a new OEM fuel cap.
• Ensure the fuel cap seals properly when tightened.

3. Inspect and Replace EVAP Hoses

• Tools Required: Pliers, hose cutter.
• Inspect all EVAP hoses for cracks or damage. Pay particular attention to the hoses connected to the fuel tank and canister.
• If any hoses are damaged, cut the damaged sections out and replace them with new hoses, ensuring tight connections.

4. Test and Replace the Purge Valve

• Tools Required: Multimeter, socket set.
• Locate the purge valve (often near the intake manifold).
• Disconnect the wiring harness and use a multimeter to check for continuity.
• If the purge valve is faulty, remove it using the socket set and replace it with a new valve.

5. Test and Replace the Vent Valve

• Tools Required: Multimeter, socket set.
• Locate the vent valve (usually near the fuel tank).
• Disconnect the wiring harness and check for continuity with a multimeter.
• If the vent valve fails the test, remove it and replace it with a new valve.

6. Clear Codes and Test Drive

• Reconnect the negative battery terminal.
• Use an OBD-II scanner to clear the P0455 code.
• Take the vehicle for a test drive to ensure the check engine light does not reappear.