my Tesla Model S Plaid/Refresh (2021-present) has a P0301 misfire code how to fix

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

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a flat surface and the ignition is off.
• Disconnect the vehicle's battery to prevent electrical shorts.

2. Remove Ignition Coil and Spark Plug

• Tools Required: Socket set, torque wrench, spark plug socket
• Remove engine cover if applicable (use appropriate tools).
• Disconnect the electrical connector from the ignition coil.
• Unbolt the ignition coil from the cylinder head and remove it.
• Use a spark plug socket to carefully remove the spark plug from cylinder 1.

3. Inspect and Replace

• Inspect the Spark Plug: Check for signs of wear, carbon build-up, or damage. Replace if necessary.
• Inspect the Ignition Coil: If the ignition coil shows signs of failure (e.g., cracks, corrosion), replace it.
• Clean or Replace Fuel Injector: If the fuel injector is clogged, clean it using an appropriate fuel injector cleaner. Replace if necessary.

4. Reassembly

• Install the spark plug back into cylinder 1 and torque it to manufacturer specifications (typically around 12-15 lb-ft).
• Reinstall the ignition coil and secure it with the bolts.
• Reconnect the electrical connector to the ignition coil.
• Replace the engine cover (if removed).

5. Final Checks

• Reconnect the vehicle's battery.
• Start the engine and let it idle to ensure proper operation.