how to resolve the P0301 code in my Tesla Model S Original (2012-2020)

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

Solution

1. Preparation

• Gather all necessary tools and parts before beginning repairs.
• Disconnect the negative battery terminal to ensure safety.
• Allow the vehicle to cool down if recently driven.

2. Inspect and Replace Spark Plug

• Remove the engine cover if applicable.
• Using a socket wrench, carefully remove the spark plug from cylinder 1.
• Inspect the spark plug for signs of fouling, wear, or damage.
• Replace with a new spark plug that meets OEM specifications (typically NGK or Bosch).
• Torque the new spark plug to the manufacturer's specified value (usually around 18 lb-ft).

3. Inspect and Replace Ignition Coil

• Disconnect the electrical connector from the ignition coil on cylinder 1.
• Remove the ignition coil using a socket wrench.
• Inspect for cracks or damage on the coil.
• Replace with a new ignition coil if necessary.
• Reconnect the ignition coil connector.

4. Test and Replace Fuel Injector (if needed)

• Disconnect the fuel injector connector from cylinder 1.
• Using a multimeter, check the resistance of the fuel injector to ensure it is within specified range.
• If faulty, remove the fuel injector using a fuel injector puller.
• Replace with a new fuel injector compatible with your vehicle.
• Reconnect the fuel injector connector.

5. Perform a Compression Test

• Remove the spark plug from cylinder 1.
• Insert a compression gauge into the spark plug hole.
• Crank the engine for a few seconds and note the reading.
• If compression is below the manufacturer's specifications, further investigation is needed into potential internal engine issues.