what does code P0301 mean for my Tesla Model S Original (2012-2020)?

Learn how to diagnose and fix P0301 cylinder 1 misfire in Tesla Model S (2012-2020). Step-by-step guide with diagnostic procedures and repair instructions.

Solution

1. Preparation

• Gather required tools and parts.
• Ensure the vehicle is parked on a flat surface and set in "Park".
• Disconnect the battery to avoid electrical shorts.

2. Inspect Wiring and Connectors

• Remove the engine cover to access the cylinder head.
• Visually inspect the wiring harness and connectors for corrosion or damage.
• Clean any dirty connections and repair or replace damaged wiring.

3. Replace Ignition Coil (if necessary)

• Remove the bolts securing the ignition coil to the cylinder head.
• Disconnect the electrical connector from the ignition coil.
• Remove the old ignition coil and install the new one.
• Reconnect the electrical connector and secure the coil with bolts to the specified torque.

4. Perform Compression Test

• Remove the spark plug from cylinder 1.
• Insert a compression gauge into the spark plug hole.
• Crank the motor for a few seconds and record the compression reading.
• Compare the result to the manufacturer’s specifications.

5. Reassemble and Reset Codes

• Reinstall the spark plug and torque it to the manufacturer's specifications.
• Reconnect the battery.
• Use the OBD-II scanner to clear the P0301 code from the system.
• Reinstall the engine cover.