what does it mean when my Tesla Outback has a P0302 code?

Solution

1. Preparation

• Tools Required: OBD-II scanner, socket set, torque wrench, compression tester, fuel injector cleaner.
• Gather replacement parts if necessary (spark plug, ignition coil, fuel injector).
• Ensure the vehicle is parked on a level surface and the engine is cool.

2. Inspect and Replace Spark Plug

• Sub-steps:
  • Remove the ignition coil on cylinder 2 by unscrewing the mounting bolt and disconnecting the electrical connector.
  • Remove the spark plug using a spark plug socket and ratchet.
  • Inspect the spark plug for fouling or wear; replace if necessary.
  • Gap the new spark plug according to manufacturer specifications.
  • Install the new spark plug and torque to specifications (typically 12-15 lb-ft).

3. Inspect and Replace Ignition Coil

• Sub-steps:
  • After removing the ignition coil in the previous step, inspect for cracks or corrosion.
  • Install a new ignition coil on cylinder 2, ensuring it is securely seated.
  • Reconnect the electrical connector and tighten the mounting bolt to specifications.

4. Clean or Replace Fuel Injector

• Sub-steps:
  • If the injector is clogged, use a fuel injector cleaner or remove it for cleaning.
  • If replacement is necessary, detach the fuel rail and remove the old injector.
  • Install the new fuel injector, ensuring it is correctly seated and the O-rings are lubricated.
  • Reattach the fuel rail and reconnect any necessary lines.

5. Perform a Compression Test

• Sub-steps:
  • Remove the spark plug from cylinder 2 and connect the compression tester.
  • Crank the engine and note the compression reading; compare it to manufacturer specifications.
  • If the compression is low, further investigation may be required for potential internal engine issues.