what does it mean if my Toyota RAV4 Fourth Generation (2013-2018) has a P0302 code?

Solution

1. Preparation

• Gather tools and parts necessary for the repair.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the battery to avoid any electrical issues.

2. Inspect and Replace Spark Plug

1. Remove the engine cover using a socket set.
2. Disconnect the ignition coil connector for cylinder 2.
3. Unbolt the ignition coil and carefully remove it.
4. Remove the spark plug using a spark plug socket and ratchet.
5. Inspect the spark plug for wear or damage and replace if necessary.
6. Install the new spark plug, torqueing it to the manufacturer’s specifications (typically 13 lb-ft).
7. Reinstall the ignition coil and connect the wiring harness.

3. Inspect and Replace Fuel Injector

1. If the spark plug is in good condition, proceed to the fuel injector.
2. Disconnect the fuel injector connector and fuel line (use caution; fuel may spill).
3. Unbolt and remove the fuel injector from the rail.
4. Inspect the injector for clogs or damage; replace if necessary.
5. Install the new fuel injector, ensuring proper seating and sealing.

4. Check for Vacuum Leaks

1. Visually inspect all vacuum hoses connected to the intake manifold.
2. Use a smoke machine (or carburetor cleaner) to check for leaks around the intake manifold.
3. Replace any damaged hoses or gaskets.

5. Final Assembly and Testing

1. Reassemble any components removed during the repair.
2. Reconnect the battery.
3. Start the engine and let it idle to check for any abnormal sounds or leaks.