how to address the P0301 code in my Tesla Model S Original (2012-2020)

Learn how to diagnose and fix P0301 cylinder 1 misfire in Tesla Model S. Step-by-step guide with diagnostic procedures and repair instructions.

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to ensure safety.
• Allow the vehicle to cool down before beginning work.

2. Inspect and Replace Spark Plug

• Sub-steps:
  1. Remove the engine cover if applicable.
  2. Disconnect the spark plug wire or ignition coil connector from cylinder 1.
  3. Use a spark plug socket to remove the spark plug from cylinder 1.
  4. Inspect the spark plug for wear, carbon buildup, or damage. Replace if necessary.
  5. Install the new spark plug, ensuring it is torqued to the manufacturer's specifications (usually around 13-15 lb-ft).

3. Inspect and Replace Ignition Coil

• Sub-steps:
  1. Remove the ignition coil for cylinder 1 by unbolting it.
  2. Inspect the coil for cracks or signs of damage.
  3. Replace the ignition coil if it appears faulty.
  4. Reinstall the ignition coil and reconnect the wire or connector.

4. Check Fuel Injector

• Sub-steps:
  1. Disconnect the fuel injector connector for cylinder 1.
  2. Use a multimeter to test the injector's resistance; compare with manufacturer specifications.
  3. If the injector is faulty, remove the old injector and install a new one, ensuring proper seating and connection.

5. Reassemble and Reconnect Battery

• Sub-steps:
  1. Reinstall any components removed during the process.
  2. Reconnect the negative battery terminal.
  3. Ensure all tools are removed from the engine bay before starting the vehicle.