how to fix the P0301 misfire code on my Tesla Outback 4th Generation

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Disconnect the battery to ensure safety while working on electrical components.
• Allow the engine to cool down before beginning any work.

2. Replace Spark Plug

• Remove the ignition coil from cylinder 1 by unscrewing the retaining bolts and disconnecting the electrical connector.
• Extract the spark plug using a spark plug socket and ratchet.
• Inspect the old spark plug for signs of wear or fouling.
• Install a new spark plug, ensuring to gap it to the manufacturer's specifications (typically between 0.028-0.032 inches).
• Torque the spark plug to the manufacturer's recommended specification (usually between 13-20 lb-ft).

3. Test and Replace Ignition Coil (if needed)

• If swapping the ignition coil did not resolve the misfire, replace the ignition coil in cylinder 1 with a new one.
• Reconnect the electrical connector and secure the ignition coil in place.

4. Inspect and Clean Fuel Injector

• If the fuel injector is suspected to be faulty, remove it from the engine.
• Use a fuel injector cleaning kit to clean the injector or replace it with a new one if it’s defective.
• Reinstall the fuel injector ensuring all seals are intact and properly seated.

5. Reassemble and Reconnect

• Reattach any components that were removed during the process.
• Reconnect the battery and ensure all connections are secure.