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

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the 12V battery to ensure safety while working on electrical components.
• Allow the vehicle to cool down before working on the engine.

2. Remove Ignition Coil and Spark Plug

• Tools Required: Socket set, torque wrench, spark plug socket
• Locate the ignition coil for cylinder 1.
• Remove the bolts securing the ignition coil and disconnect the electrical connector.
• Remove the spark plug using a spark plug socket and ratchet.

3. Inspect and Replace Components

• Inspect the ignition coil for signs of damage or wear; replace if necessary.
• Check the spark plug for carbon buildup or wear; replace if it appears damaged or worn out. Use OEM specifications for the spark plug gap.
• If the fuel injector for cylinder 1 is found to be clogged, clean it or replace it if it is beyond repair.

4. Reinstall Ignition Coil and Spark Plug

• Reinsert the spark plug and torque it to the manufacturer’s specifications (typically around 15-20 ft-lbs, but check for specific values).
• Reinstall the ignition coil, securing it with bolts and reconnecting the electrical connector.

5. Reconnect Battery and Test

• Reconnect the 12V battery.
• Start the vehicle and let it idle; monitor for any irregularities and verify the check engine light is off.