how to troubleshoot a P0455 code on Volkswagen Golf MK6 (2009-2014)

Solution

1. Preparation

• Gather tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is off.
• Disconnect the battery to prevent electrical shorts.

2. Inspect and Replace Gas Cap

• Remove the gas cap.
• Inspect the rubber seal for cracks or wear.
• Replace with a new gas cap if necessary (Parts Required: New gas cap).
• Reinstall the gas cap securely.

3. Inspect and Replace EVAP Hoses

• Locate the EVAP hoses connected to the fuel tank and canister.
• Remove the clamps and disconnect the hoses.
• Check for cracks or deterioration; replace any faulty hoses (Parts Required: New EVAP hoses).
• Reconnect and secure the hoses with clamps.

4. Inspect EVAP Canister

• Remove any fasteners securing the EVAP canister.
• Disconnect electrical connectors and hoses attached to the canister.
• Inspect for cracks or blockages; replace if necessary (Parts Required: New EVAP canister).
• Reinstall the canister and reconnect all attachments.

5. Test and Replace Purge and Vent Valves

• Locate the purge valve and vent valve.
• Use a multimeter to check for proper operation; replace if faulty (Parts Required: New purge valve, New vent valve).
• Reconnect electrical connectors and ensure proper sealing.