how to resolve the P0456 code on my Tesla Model S Original (2012-2020)

• •Check engine light illuminated
• •Fuel odor near the vehicle
• •Decreased fuel economy
• •Difficulty filling the fuel tank (nozzle clicks off prematurely)
• •Emission test failure

1. 1Scan for error codes using an OBD-II scanner to confirm the P0456 code and check for any additional codes.
2. 2Inspect the gas cap for damage or improper sealing; replace if necessary.
3. 3Visually inspect all EVAP system hoses and components for cracks, splits, or loose connections.
4. 4Use a smoke machine to test the EVAP system for leaks in the hoses, canister, and connections.
5. 5Check the EVAP purge valve operation by applying voltage to see if it opens and closes properly.
6. 6Inspect the fuel tank and venting system for any obstructions or leaks.

After completing the repair, verify that the issue has been resolved:

• ✓Test the affected component to ensure it functions correctly
• ✓Check for any error codes or warning lights
• ✓Monitor the vehicle for a few days to ensure the issue does not recur

To prevent this issue from occurring again:

• •Follow the manufacturer's recommended maintenance schedule
• •Address warning signs early before they develop into major issues
• •Use quality parts and fluids recommended for your vehicle
• •Keep detailed records of all repairs and maintenance

• •OBD-II scanner
• •Screwdrivers
• •Pliers
• •Smoke machine
• •Multimeter

• •OEM gas cap (if damaged)
• •Replacement EVAP hoses (if necessary)
• •EVAP purge valve (if faulty)