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

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface, and the engine is cool.
• Disconnect the negative terminal of the battery to prevent electrical shock.

2. Inspect and Replace Spark Plug

• Tools Required: Socket set, torque wrench, spark plug socket.
• Remove the ignition coil on cylinder 1.
  • Unplug the electrical connector from the ignition coil.
  • Remove the mounting bolts and pull the ignition coil out.
• Remove the spark plug using a spark plug socket.
• Inspect the old spark plug for wear; replace it with a new one if necessary.
• Torque the new spark plug to the manufacturer's specification (typically around 13-15 lb-ft).

3. Inspect and Replace Ignition Coil

• If the spark plug is in good condition, inspect the ignition coil.
• If faulty, install a new ignition coil:
  • Position the new ignition coil and secure it with bolts.
  • Reconnect the electrical connector to the ignition coil.

4. Check and Replace Fuel Injector

• Tools Required: Fuel injector puller (if needed), socket set.
• Disconnect the fuel line and electrical connector from the fuel injector on cylinder 1.
• Remove the fuel injector.
• Inspect for clogs; replace with a new injector if necessary.
• Reinstall the new injector and ensure all connections are secure.

5. Reconnect Battery and Clear Codes

• Reconnect the negative battery terminal.
• Use the OBD-II scanner to clear the P0301 code from the system.