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

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to ensure safety.
• Wait for the engine to cool down completely.

2. Inspect and Replace Spark Plug

• Tools Required: Socket set, torque wrench, spark plug socket, anti-seize compound.
• Remove the ignition coil from cylinder 1.
• Unscrew the spark plug using a spark plug socket.
• Inspect the spark plug for wear; if damaged, replace with a new one.
• Apply anti-seize compound to the threads of the new spark plug.
• Install the new spark plug and torque to manufacturer's specifications (usually around 15-20 ft-lbs).

3. Check and Replace Ignition Coil

• Tools Required: Socket set, torque wrench.
• If the ignition coil appears damaged, remove it by unscrewing the mounting bolts.
• Install the new ignition coil and torque to manufacturer's specifications.
• Reconnect the electrical connector securely.

4. Inspect Fuel Injector

• Tools Required: Fuel injector cleaning kit or replacement injector.
• If the injector is clogged, clean it using a proper fuel injector cleaning kit.
• If cleaning does not resolve the issue, replace the fuel injector.
• Reconnect the injector harness securely.

5. Reassemble and Reconnect Battery

• Reinstall any components removed during the process.
• Reconnect the negative battery terminal.