what does it mean if my Tesla Outback's check engine light is on?

Solution

1. Preparation

• Gather tools: OBD-II scanner, socket set, multimeter, torque wrench.
• Ensure the vehicle is parked on a flat surface and the engine is cool.

2. Address Fault Codes

• Connect the OBD-II scanner to the diagnostic port.
• Retrieve and document all error codes.
• Research codes to determine the affected components.

3. Inspect and Replace Components

• Air Filter:
  • Remove the air filter housing.
  • Inspect the air filter for dirt and obstructions.
  • Replace with a new air filter if necessary.
• Spark Plugs:
  • Remove ignition coil covers.
  • Unplug the ignition coils and remove them.
  • Inspect spark plugs for wear; replace if needed.
  • Reinstall coils and covers, ensuring proper torque specifications.

4. Check Fuel System

• Inspect fuel injectors for clogs.
• Test fuel pressure with a fuel pressure gauge.
• Replace fuel filter if pressure is low.

5. Clear Codes and Test

• After repairs, use the OBD-II scanner to clear error codes.
• Start the engine and monitor for check engine light re-illumination.