how to clear the P0455 code on my Honda CR-V Sixth Generation (2023-present)

Solution

1. Preparation

• Gather all necessary tools and parts.
• Disconnect the battery to ensure safety while working on the EVAP system.
• Allow the engine to cool completely before starting work.

2. Inspect and Replace Gas Cap

• Tools Required: None.
• Check the gas cap for cracks or wear. If damaged, replace it with a new OEM gas cap.
• Ensure the new gas cap is tightened securely.

3. Inspect EVAP Hoses

• Tools Required: Pliers, flashlight.
• Remove any clamps securing the EVAP hoses.
• Check each hose for cracks or signs of deterioration.
• Replace any damaged hoses with OEM parts and secure them with clamps.

4. Smoke Test

• Tools Required: Smoke machine.
• Connect the smoke machine to the EVAP service port.
• Activate the machine to inject smoke into the system.
• Observe for smoke escaping from any areas, indicating a leak.

5. Test and Replace Purge Valve (if necessary)

• Tools Required: Multimeter, socket set.
• Disconnect the electrical connector from the purge valve.
• Use a multimeter to test for continuity and proper operation.
• If faulty, replace the purge valve with an OEM part.

6. Clear the Codes

• Tools Required: OBD-II scanner.
• Reconnect the battery and use the OBD-II scanner to clear the P0455 code from the system.
• Perform a short test drive to ensure that the code does not reappear.