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

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the battery to prevent electrical shorts.
• Allow the engine to cool before starting work.

2. Replace Spark Plug

• Tools Required: Socket set, spark plug socket, torque wrench
• Remove the ignition coil from cylinder 1:
  1. Unplug the electrical connector from the ignition coil.
  2. Remove the mounting bolts holding the coil in place.
  3. Gently pull the coil out of the spark plug well.
• Remove the spark plug:
  1. Use the spark plug socket to unscrew and remove the spark plug.
  2. Inspect the spark plug condition.
• Install the new spark plug:
  1. Apply anti-seize lubricant to the threads of the new spark plug (if necessary).
  2. Hand-tighten the spark plug into the cylinder head.
  3. Use the torque wrench to tighten the spark plug to the manufacturer's specifications (typically around 13-15 lb-ft).

3. Replace Ignition Coil (if faulty)

• Tools Required: Socket set
• Remove the old ignition coil:
  1. Repeat the removal steps from the previous section.
• Install the new ignition coil:
  1. Place the new ignition coil over the spark plug.
  2. Secure the coil with the mounting bolts and reconnect the electrical connector.

4. Check Fuel Injector

• Tools Required: Fuel injector cleaning kit or removal tools
• Remove the fuel injector for cylinder 1:
  1. Release the fuel pressure using the service manual procedure.
  2. Disconnect the electrical connector and fuel line.
  3. Remove the injector from the intake manifold.
• Clean or replace the injector as needed:
  1. Clean the injector using a fuel injector cleaning kit or replace with a new injector.

5. Reassemble and Reconnect

• Reassemble any components removed during the repair.
• Reconnect the battery.
• Clear the diagnostic trouble codes using the OBD-II scanner.