how to resolve P0302 code in my Toyota RAV4 Fifth Generation (2019-present)

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the negative battery terminal to prevent electrical shock.

2. Replace Spark Plug and Ignition Coil

1. Remove Engine Cover (if applicable)

   • Use a socket set to remove any bolts securing the engine cover.
   • Carefully lift off the cover and set it aside.

2. Access Cylinder 2 Components

   • Locate cylinder 2 spark plug and ignition coil. Refer to the engine diagram if necessary.

3. Remove Ignition Coil

   • Disconnect the electrical connector from the ignition coil.
   • Remove the ignition coil securing bolts using a socket wrench.
   • Gently pull the ignition coil out of the cylinder head.

4. Replace Spark Plug

   • Use a spark plug socket to remove the old spark plug from cylinder 2.
   • Inspect the spark plug for wear or deposits. Replace it with a new spark plug that matches OEM specifications.
   • Torque the new spark plug to the manufacturer's specification (typically around 13-15 lb-ft).

5. Install New Ignition Coil

   • Insert the new ignition coil into the cylinder head and secure it with bolts. Torque to manufacturer specifications.
   • Reconnect the electrical connector to the ignition coil.

3. Check Fuel Injector

1. Inspect Fuel Injector
   • If the issue persists, remove the fuel injector and inspect for clogs or damage.
   • Clean or replace the fuel injector as necessary.

4. Reassemble and Test

• Reinstall the engine cover if it was removed.
• Reconnect the negative battery terminal.
• Start the engine and check for any warning lights.