how to fix P0303 code on Tesla Outback 5th Generation (2015-2019)

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the negative battery terminal to prevent electrical shocks.

2. Inspect and Replace Spark Plug

1. Remove Engine Cover (if applicable)
   • Use a socket set to remove any bolts securing the engine cover.
2. Remove Spark Plug
   • Use a spark plug socket and ratchet to remove the spark plug from cylinder 3.
3. Inspect Spark Plug
   • Check for signs of wear or fouling (e.g., oil or carbon deposits).
4. Replace Spark Plug
   • Install a new spark plug (ensure it meets OEM specifications) and torque it to the specified value (typically around 13-15 lb-ft).

3. Inspect and Replace Ignition Coil

1. Remove Ignition Coil
   • Disconnect the electrical connector from the ignition coil.
   • Remove the mounting bolts (if applicable) and lift the ignition coil out of the cylinder head.
2. Install New Ignition Coil
   • Place the new ignition coil in the same position and secure it with bolts.
   • Reconnect the electrical connector firmly.

4. Check Fuel Injector

1. Remove Fuel Injector Connector
   • Carefully disconnect the electrical connector from the fuel injector.
2. Test Fuel Injector Operation
   • Use a multimeter to check for electrical continuity.
   • If the injector is faulty, remove it using an injector puller.
3. Replace Fuel Injector
   • Install a new fuel injector and reconnect the electrical connector.

5. Reassemble and Reconnect Battery

• Reinstall the engine cover (if applicable).
• Reconnect the negative battery terminal securely.