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

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the battery to prevent electrical shock.

2. Inspect and Replace Spark Plug

• Sub-steps:
  • Remove the engine cover (if applicable) to access the spark plugs.
  • Remove the spark plug wire or ignition coil from cylinder 2.
  • Use a spark plug socket to carefully remove the spark plug from cylinder 2.
  • Inspect the spark plug for signs of wear, such as carbon buildup or electrode damage.
  • If necessary, replace the spark plug with a manufacturer-recommended part.
  • Reinstall the spark plug and reconnect the ignition coil or spark plug wire.

3. Inspect and Replace Ignition Coil

• Sub-steps:
  • If the ignition coil was tested and found faulty, remove it from cylinder 2.
  • Unplug the electrical connector from the ignition coil.
  • Remove the mounting bolts and lift the ignition coil out.
  • Install the new ignition coil, ensuring it is seated properly.
  • Reconnect the electrical connector and replace any retaining bolts.

4. Inspect and Clean Fuel Injector

• Sub-steps:
  • Disconnect the fuel injector electrical connector.
  • Remove any retaining clips or bolts securing the fuel injector.
  • Carefully pull the fuel injector out of the fuel rail.
  • Inspect the injector for clogs or debris. Clean it with an appropriate cleaning solution if necessary.
  • Reinstall the fuel injector with new O-rings (if included) and reconnect the electrical connector.

5. Check for Vacuum Leaks

• Sub-steps:
  • Inspect all vacuum lines around the intake manifold for cracks or disconnections.
  • Use a smoke machine or carburetor cleaner to check for leaks while the engine is running.
  • Repair or replace any damaged vacuum lines.

6. Final Steps

• Reconnect the battery.
• Start the engine and allow it to reach operating temperature.
• Clear the P0302 code using an OBD-II scanner and take the vehicle for a test drive.