how to fix the P0455 code on my Volkswagen Golf Eighth Generation (2020-present)?

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is on a level surface and parked safely.
• Disconnect the negative battery terminal to prevent electrical issues.

2. Inspect and Replace Gas Cap

• Tools Required: None
• Remove the gas cap and inspect the rubber seal for cracks or damage.
• If damaged, replace with a new gas cap that matches OEM specifications.

3. EVAP Hose Inspection and Replacement

• Tools Required: Pliers, socket set
• Visually inspect all EVAP hoses connected to the fuel tank, purge valve, and charcoal canister.
• If any hoses are cracked or damaged, use pliers to remove the old hoses and replace them with new ones, ensuring they are secured tightly.

4. Smoke Test

• Tools Required: Smoke machine
• Connect the smoke machine to the EVAP service port.
• Activate the machine and observe for smoke escaping from any leaks.
• If leaks are found, replace the affected components (e.g., hoses, valves).

5. Purge and Vent Valve Testing

• Tools Required: Multimeter
• Locate the purge valve and vent valve.
• Disconnect the electrical connectors and test the valves with a multimeter for continuity.
• If either valve is faulty, remove it using the appropriate socket size and replace with a new one.

6. Charcoal Canister Inspection and Replacement

• Tools Required: Socket set
• Locate the charcoal canister and inspect for cracks or blockages.
• If damaged or blocked, disconnect the hoses and electrical connectors, then remove the canister.
• Install a new charcoal canister by reversing the removal process.