how to fix P0302 code in my Toyota RAV4 XA40 (2013-2018)

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to prevent electrical shock.
• Allow the engine to cool before starting work.

2. Replace Spark Plug and Ignition Coil (if faulty)

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 Ignition Coil and Spark Plug

   • Remove the ignition coil connector by pressing the release tab and pulling it off.
   • Unbolt the ignition coil using a socket wrench (typically 10mm).
   • Gently pull the ignition coil out.

3. Replace Spark Plug

   • Use a spark plug socket to remove the spark plug from cylinder 2.
   • Inspect the old spark plug for wear; replace with a new spark plug if necessary (specify gap according to manufacturer specs).
   • Apply anti-seize lubricant to the threads of the new spark plug before installation.
   • Torque the spark plug to the manufacturer’s specifications (usually around 13-15 ft-lbs).

4. Reinstall Ignition Coil

   • Insert the ignition coil back into place and secure it with the bolt.
   • Reconnect the ignition coil connector.

3. Check and Replace Fuel Injector (if necessary)

1. Remove Fuel Rail (if needed)

   • Relieve fuel system pressure by removing the fuel pump fuse and starting the engine until it stalls.
   • Disconnect the fuel lines and electrical connectors from the fuel rail.
   • Unbolt the fuel rail and carefully remove it, taking note of the injector positioning.

2. Inspect and Replace Injector

   • Remove the fuel injector from cylinder 2.
   • Check for clogs or damage; replace if necessary.
   • Install the new injector and reassemble the fuel rail.

4. Reassemble and Check Connections

• Ensure all connectors and hoses are securely reattached.
• Reinstall the engine cover if it was removed.