how to fix a P0455 code in my Toyota Corolla E140 (2006-2013)

Learn how to diagnose and fix P0455 code in Toyota Corolla E140. Step-by-step guide with diagnostic procedures and repair instructions.

Solution

1. Preparation

• Gather all necessary tools and parts.
• Disconnect the negative battery terminal to ensure safety.

2. Inspect and Replace the Gas Cap

• Tools Required: None specifically, but a torque wrench may be helpful.
• Remove the gas cap and inspect for cracks or a damaged seal.
• If damaged, replace the gas cap with a new one, ensuring it is the correct type for the vehicle.

3. Inspect and Replace EVAP Hoses

• Tools Required: Pliers, cutting tool (if necessary).
• Trace the EVAP hoses from the fuel tank to the EVAP canister and purge valve.
• Replace any damaged hoses with OEM parts, ensuring secure fittings.

4. Test and Replace the EVAP Purge Valve (if necessary)

• Tools Required: Multimeter, socket set.
• Disconnect the electrical connector from the purge valve.
• Use a multimeter to check for continuity and proper function.
• If faulty, remove the purge valve using a socket set and replace it with a new one.

5. Conduct a Smoke Test (if leaks are suspected)

• Tools Required: Smoke machine.
• Connect the smoke machine to the EVAP service port.
• Introduce smoke into the system and visually inspect for any leaks.
• Repair any leaks found.

6. Recheck System and Clear Codes

• Reconnect the negative battery terminal.
• Use the OBD-II scanner to clear the P0455 code.
• Start the engine and monitor the system for leaks or issues.