how to fix P0301 misfire code in Tesla Model 3 Original (2017-2023)

Solution

1. Preparation

• Gather tools and parts needed.
• Ensure the vehicle is in a safe, flat workspace.
• Disconnect the 12V battery to prevent electrical shorts.

2. Inspect and Replace Spark Plug

• Sub-steps:
  1. Remove the engine cover (if applicable) using a socket set.
  2. Disconnect the ignition coil connector from the spark plug.
  3. Remove the ignition coil from cylinder 1 by unscrewing it.
  4. Remove the spark plug using a spark plug socket.
  5. Inspect the spark plug for wear, deposits, or damage, and replace it if necessary.
  6. Install the new spark plug and torque to the manufacturer's specification (usually around 12-15 lb-ft).
  7. Reinstall the ignition coil and reconnect the electrical connector.

3. Inspect and Replace Ignition Coil (if needed)

• Sub-steps:
  1. If the ignition coil shows signs of damage or wear, replace it with a new unit.
  2. Ensure the new ignition coil is seated properly and reconnect the electrical connector securely.

4. Check Fuel Injector

• Sub-steps:
  1. Disconnect the fuel injector connector.
  2. Inspect the fuel injector for clogs or damage.
  3. If faulty, replace the fuel injector with a compatible part.
  4. Reconnect the injector connector and ensure it clicks into place.

5. Reconnect Battery

• Reconnect the 12V battery and ensure all connections are tight.