how to fix the P0455 code on my Toyota Corolla E140 (2006-2013)

Learn how to diagnose and fix P0455 EVAP system leak in Toyota Corolla E140 (2006-2013). Step-by-step guide with diagnostic procedures and repair instructions.

Solution

1. Preparation

• Gather tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the negative battery terminal.

2. Inspect and Replace the Gas Cap

• Tools Required: None
• Remove the gas cap and inspect it for damage or wear.
• If damaged, replace it with a new one compatible with the Toyota Corolla.

3. Inspect EVAP Hoses and Lines

• Tools Required: Socket set, screwdriver
• Locate the EVAP hoses connected to the fuel tank and EVAP canister.
• Remove and inspect each hose for cracks or loose connections.
• Replace any damaged hoses with OEM-quality replacements.

4. Inspect and Replace the EVAP Canister (if necessary)

• Tools Required: Socket set, pliers
• Locate the EVAP canister (usually near the fuel tank).
• Disconnect the electrical connector and hoses attached to the canister.
• Remove the canister from its mounting bracket.
• If the canister is damaged, replace it with a new one.

5. Test and Replace the Purge and Vent Valves

• Tools Required: Multimeter
• Locate the purge valve and vent valve (typically found near the intake manifold and EVAP canister).
• Disconnect the electrical connectors and test for continuity using a multimeter.
• If faulty, replace the valves with new OEM parts.

6. Reassemble and Clear Codes

• Reinstall all components in reverse order.
• Reconnect the negative battery terminal.
• Use the OBD-II scanner to clear the P0455 code.