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

Solution

1. Preparation

• Gather tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is cool.

Tools Required:

• OBD-II scanner
• Socket set
• Torque wrench
• Compression tester
• Multimeter
• Noid light

2. Replace Spark Plug

1. Disconnect the negative battery terminal.
2. Remove the engine cover if applicable.
3. Locate the spark plug for cylinder 2.
4. Use a spark plug socket to remove the old spark plug.
5. Inspect the old spark plug for damage or fouling.
6. Gap the new spark plug according to manufacturer specifications.
7. Install the new spark plug and torque it to the manufacturer's specification (typically 13-16 lb-ft).
8. Reconnect the ignition coil and the engine cover.

3. Replace Ignition Coil

1. Disconnect the negative battery terminal.
2. Remove the connector from the ignition coil for cylinder 2.
3. Unbolt the ignition coil using a socket.
4. Remove the ignition coil from the spark plug tube.
5. Install the new ignition coil and secure it with the bolt.
6. Reconnect the electrical connector.

4. Inspect and Clean Fuel Injector

1. Disconnect the fuel injector connector for cylinder 2.
2. Remove the fuel rail if necessary to access the injector.
3. Remove the fuel injector from the rail.
4. Inspect the injector for clogging or damage.
5. Clean the injector using an appropriate cleaning solution or replace it if necessary.
6. Reinstall the fuel injector and reconnect the electrical connector.