how to fix P0301 misfire code in Tesla Outback 5th Generation (2015-2019)

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Disconnect the battery to prevent electrical shorts.
• Allow the engine to cool down before starting work.

2. Replace Spark Plug

• Tools Required: Socket set, torque wrench, spark plug socket.
• Remove the ignition coil from cylinder 1:
  1. Disconnect the electrical connector from the ignition coil.
  2. Remove the bolts securing the ignition coil using the socket set.
  3. Pull the ignition coil out of the spark plug well.
• Replace the spark plug:
  1. Use the spark plug socket to remove the old spark plug.
  2. Inspect the spark plug for signs of wear or damage.
  3. Gap the new spark plug to the manufacturer's specifications.
  4. Install the new spark plug and torque it to the specified value (usually around 13-15 lb-ft).
  5. Reinstall the ignition coil and secure it with bolts. Reconnect the electrical connector.

3. Test Fuel Injector

• Tools Required: Fuel pressure gauge, multimeter.
• Test the fuel injector for cylinder 1:
  1. Disconnect the fuel injector connector.
  2. Using a multimeter, check for proper resistance (consult specifications for ohm range).
  3. If the resistance is out of range, replace the fuel injector.
  4. If functioning, reconnect the injector and proceed to check fuel pressure.
• Connect the fuel pressure gauge to the fuel rail and turn the ignition to the ON position (without starting) to check for adequate fuel pressure.

4. Perform Compression Test

• Tools Required: Compression tester.
• Conduct a compression test on cylinder 1:
  1. Remove the spark plug from cylinder 1.
  2. Insert the compression tester into the spark plug hole and crank the engine.
  3. Record the compression reading and compare it to the manufacturer’s specifications.
  4. If compression is low, further diagnostics may be needed for engine internal issues.