how to fix P0301 misfire code on Tesla Outback 4th Generation (2010-2014)

Solution

1. Preparation

• Gather tools: OBD-II scanner, socket set, torque wrench, multimeter, fuel pressure gauge, compression tester.
• Ensure the vehicle is parked on a level surface and the engine is turned off and cooled down.

2. Replace Spark Plug

• Sub-steps:
  1. Remove the engine cover if applicable.
  2. Disconnect the ignition coil connector on cylinder 1.
  3. Remove the ignition coil from cylinder 1.
  4. Unscrew and remove the old spark plug using a spark plug socket.
  5. Install a new spark plug, ensuring to gap it according to manufacturer specifications (usually around 0.044 inches).
  6. Torque the spark plug to the manufacturer's specified value (typically 13-16 lb-ft).
  7. Reinstall the ignition coil and reconnect the connector.

3. Replace Ignition Coil (if necessary)

• Sub-steps:
  1. If the ignition coil was found faulty, remove it as described above.
  2. Install the new ignition coil onto cylinder 1 and ensure it is seated properly.
  3. Reconnect the ignition coil connector.

4. Check and Replace Fuel Injector (if necessary)

• Sub-steps:
  1. Remove the fuel rail bolts and gently lift the fuel rail with the injector connected.
  2. Disconnect the injector connector for cylinder 1.
  3. Remove the old fuel injector (may require twisting while pulling).
  4. Install the new fuel injector, ensuring it is seated correctly.
  5. Reconnect the injector connector and reassemble the fuel rail.

5. Final Checks

• Sub-steps:
  1. Reconnect the battery if disconnected.
  2. Start the engine and check for proper idle.
  3. Clear any error codes using the OBD-II scanner.