how to fix P0302 code on Toyota RAV4 Fourth Generation (2013-2018)?

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Disconnect the negative terminal of the battery to ensure safety while working on electrical components.

2. Replace Spark Plug

• Sub-steps:
  1. Remove the ignition coil from cylinder 2 by disconnecting the electrical connector and unscrewing the mounting bolts.
  2. Remove the spark plug using a spark plug socket and ratchet.
  3. Inspect the old spark plug for signs of wear or oil fouling.
  4. Install a new spark plug (OEM recommended specifications) and torque it to 13 lb-ft (18 Nm).
  5. Reinstall the ignition coil and reconnect the electrical connector.

3. Replace Ignition Coil (if needed)

• Sub-steps:
  1. If the ignition coil is faulty, remove it from cylinder 2 (follow steps in "Replace Spark Plug").
  2. Install a new ignition coil, ensuring it is seated properly on the spark plug.
  3. Reconnect the electrical connector.

4. Check Fuel Injector

• Sub-steps:
  1. Remove the fuel rail to access the fuel injector for cylinder 2.
  2. Inspect the injector for clogs or damage. Clean or replace the injector as necessary.
  3. Reinstall the fuel rail and ensure all connections are secure.

5. Verify and Reassemble

• Ensure all components are reinstalled correctly.
• Reconnect the negative battery terminal.