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Home/Cars/Subaru/Outback/6th Generation (2020-2024)/how to clear the P0455 code on my Tesla Outback 6th Generation (2020-2024)?

how to clear the P0455 code on my Tesla Outback 6th Generation (2020-2024)?

Subaru Outback 6th Generation (2020-2024)

Error Codes
Severity: mediumDifficulty: mediumError Code: P04552-4 hours
3 min read
545 words

Problem Statement

Learn how to diagnose and fix P0455 EVAP system leak in Tesla Outback 6th Generation. Step-by-step guide with diagnostic procedures and repair instructions.

Error Code
P0455
Affected Component
Fuel System
Estimated Time
2-4 hours

Safety Warnings

  • ⚠Disconnect the battery before working on electrical components.
  • ⚠Allow the vehicle to cool down before performing any inspection or repairs near the fuel system.

Symptoms

  • •Check engine light illuminated
  • •Fuel odor near the vehicle
  • •Failed emissions test
  • •Poor fuel economy
  • •Unusual hissing sound from the fuel tank area

Diagnostic Steps

  1. 1Scan the vehicle with an OBD-II scanner to confirm the P0455 code and check for any additional codes.
  2. 2Inspect the gas cap for damage, ensuring it is tightly sealed and free from cracks.
  3. 3Visually examine the EVAP hoses and connections for any signs of wear or leaks.
  4. 4Perform a smoke test on the EVAP system to locate any leaks.
  5. 5Check the purge valve for proper operation by applying voltage to see if it opens and closes.
  6. 6Clear the trouble code using the OBD-II scanner and take the vehicle for a test drive to see if the code returns.

Solution

Solution

1. Preparation

  • Gather necessary tools and parts.
  • Ensure the vehicle is parked on a level surface and the ignition is off.
  • Disconnect the battery to ensure safety.

2. Inspect and Replace the Gas Cap

  • Tools Required: None specifically for this step.
  • Remove the gas cap and check for proper sealing and condition.
  • If damaged, replace the gas cap with a new one.
  • Reinstall the gas cap securely.

3. Inspect EVAP Hoses and Connections

  • Tools Required: Pliers, flashlight.
  • Visually inspect all EVAP hoses for cracks or detachment.
  • Check all connections for tightness and security.
  • Replace any damaged hoses or fittings as needed.

4. Perform Smoke Test

  • Tools Required: Smoke machine.
  • Connect the smoke machine to the EVAP service port.
  • Activate the machine to introduce smoke into the system.
  • Observe for any smoke escaping which indicates a leak; repair as necessary.

5. Test the Purge Valve

  • Tools Required: Multimeter.
  • Locate the purge valve, typically near the intake manifold.
  • Disconnect the electrical connector and test for continuity with a multimeter.
  • If faulty, replace the purge valve.

6. Clear the Code

  • Reconnect the battery and use the OBD-II scanner to clear the P0455 code.
  • Take the vehicle for a test drive to ensure the code does not return.

Verification

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

Prevention Tips

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

Tools & Equipment Required

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

Parts Required

  • •New gas cap (if needed)
  • •Replacement EVAP hoses (if damaged)
  • •New purge valve (if tested faulty)

Additional Information

Error Code
P0455
Affected Component
Fuel System
Estimated Time
2-4 hours
Difficulty
medium
Severity
medium
Tools Required
5 items
Parts Required
3 items

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