my Toyota RAV4 XA40 (2013-2018) has a check engine light and it's code P0302, what does it mean?

Solution

1. Preparation

• Gather required tools and parts.
• Ensure the vehicle is parked on a level surface.
• Disconnect the negative battery terminal to prevent electrical shorts.

2. Inspect and Replace Spark Plug

• Tools Required: Socket set, spark plug socket, torque wrench
• Remove the ignition coil from cylinder 2:
  1. Unplug the electrical connector from the ignition coil.
  2. Remove the bolts securing the ignition coil and lift it out.
• Remove the spark plug:
  1. Use a spark plug socket to unscrew the spark plug.
  2. Inspect the spark plug for wear or damage; replace if necessary.
• Install the new spark plug:
  1. Torque the new spark plug to 13 lb-ft (18 Nm).
  2. Reinstall the ignition coil and reconnect the electrical connector.

3. Check and Replace Ignition Coil

• Tools Required: Socket set, multimeter (for testing)
• If the ignition coil is faulty:
  1. Test the ignition coil with a multimeter to confirm it is within specifications.
  2. If defective, replace the ignition coil with a new one.
  3. Reinstall the ignition coil as described previously.

4. Inspect and Replace Fuel Injector

• Tools Required: Fuel injector puller (if needed), socket set
• Check the fuel injector for clogs:
  1. If clogged, remove the fuel injector using a fuel injector puller.
  2. Clean or replace the fuel injector as necessary.
  3. Reinstall the fuel injector and ensure proper seating.

5. Verify Compression

• Tools Required: Compression tester
• If misfire persists:
  1. Perform a compression test on cylinder 2.
  2. If compression is below specifications, additional engine repair may be required.