how to fix P0301 misfire code in 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 tools and parts.
• Ensure the vehicle is parked on a level surface with the engine turned off.
• Disconnect the battery to prevent electrical shock.

2. Replace Spark Plug

• Remove the engine cover if applicable.
• Locate cylinder 1 spark plug (consult service manual for specific location).
• Use a spark plug socket and ratchet to remove the old spark plug.
• Inspect the spark plug gap and replace it with a new spark plug (check specifications for proper gap).
• Torque the new spark plug to manufacturer specifications (usually around 15-20 lb-ft).

3. Inspect and Replace Ignition Coil

• Remove the ignition coil from cylinder 1 by unscrewing any retaining bolts.
• Disconnect the electrical connector from the ignition coil.
• Install the new ignition coil and reconnect the electrical connector.
• Secure the ignition coil with retaining bolts and torque to specifications.

4. Check Fuel Injector

• Disconnect the fuel injector connector for cylinder 1.
• Use a multimeter to test the resistance of the fuel injector (consult specifications for correct resistance range).
• If necessary, replace the fuel injector with a new one.
• Reconnect the fuel injector connector.

5. Reassemble and Reconnect

• Reinstall any components removed during the process.
• Reconnect the battery.
• Start the engine and check for any error codes.