what does it mean if my Tesla Outback has a P0455 code?

Learn how to diagnose and fix P0455 large leak in EVAP system for Tesla Outback. Step-by-step guide with diagnostic procedures and repair instructions.

Solution

1. Preparation

• Gather necessary tools and parts.
• Park the vehicle on a level surface and engage the parking brake.
• Disconnect the negative battery terminal for safety.

2. Inspect and Replace Gas Cap

• Remove the gas cap and inspect for any cracks or worn rubber seals.
• If damaged, replace with a new gas cap.
• Ensure it clicks into place when reinstalled.

3. Check EVAP Hoses and Connections

• Locate the EVAP hoses connected to the fuel tank and canister.
• Inspect each hose for signs of wear, cracks, or loose connections.
• Replace any damaged hoses with new ones.

4. Inspect EVAP Canister

• Locate the EVAP canister, typically found near the fuel tank.
• Remove any debris or obstructions from around the canister.
• Inspect for cracks or damage; replace if necessary.

5. Leak Testing

• Connect a smoke machine to the EVAP system through the service port.
• Introduce smoke and visually inspect for any leaks.
• Repair or replace any components where smoke is escaping.

6. Reconnect Battery and Clear Codes

• Reconnect the negative battery terminal.
• Use the scanner to clear the P0455 code and any other related codes.
• Start the vehicle and allow it to reach operating temperature.