how to fix P0302 misfire code on Tesla Outback 4th Generation (2010-2014)?

Solution

1. Preparation

• Gather necessary tools and parts (see below).
• Ensure the vehicle is parked on a flat surface and the engine is cool.
• Disconnect the negative battery terminal to prevent electrical shock.

2. Check and Replace Spark Plug

• Sub-steps:
  1. Remove the engine cover if applicable.
  2. Locate the spark plug for cylinder 2 (refer to the vehicle's service manual).
  3. Use a spark plug socket to remove the spark plug.
  4. Inspect the spark plug for wear or damage; replace if necessary.
  5. Install a new spark plug, tightening it to the manufacturer’s specified torque (typically around 13 lb-ft).

3. Inspect and Replace Ignition Coil

• Sub-steps:
  1. Remove the ignition coil for cylinder 2 by unscrewing the mounting bolts and disconnecting the electrical connector.
  2. Inspect the ignition coil for cracks or damage; replace if necessary.
  3. Install the new ignition coil, ensuring proper connection to the electrical harness.

4. Test and Replace Fuel Injector

• Sub-steps:
  1. Disconnect the fuel injector connector for cylinder 2.
  2. Use a multimeter to test the injector for resistance; replace if the reading is out of specifications.
  3. If necessary, remove the fuel rail to access the injector.
  4. Install a new fuel injector, ensuring proper sealing and connection.
  5. Reconnect the fuel rail and ensure there are no fuel leaks.

5. Compression Test

• Sub-steps:
  1. Remove the spark plug from cylinder 2.
  2. Insert a compression gauge into the spark plug hole.
  3. Crank the engine for a few seconds and record the pressure reading.
  4. If compression is low, further investigation into engine internals may be required.