how to fix P0302 misfire code on Toyota Camry Eighth Generation (2018-present)?

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Disconnect the negative terminal of the battery to prevent electrical shorts.

Tools Required:

• OBD-II scanner
• Socket set
• Torque wrench
• Compression tester
• Noid light or multimeter
• Screwdrivers
• Safety goggles and gloves

2. Replace Spark Plug

1. Remove the engine cover if applicable.
2. Disconnect the ignition coil connector for cylinder 2.
3. Unscrew the ignition coil from the cylinder head and remove it.
4. Remove the spark plug using a spark plug socket.
5. Inspect the old spark plug; if worn or fouled, replace it with a new one (use OEM specifications).
6. Gap the new spark plug as per the manufacturer's specifications.
7. Install the new spark plug and torque it to the specified value (usually around 13-15 lb-ft).
8. Reinstall the ignition coil and reconnect the connector.

3. Replace Ignition Coil (if necessary)

1. If the ignition coil appears damaged or faulty after inspection, remove the old coil as described in the previous step.
2. Install the new ignition coil onto the spark plug and secure it in place.
3. Reconnect the ignition coil connector.

4. Check Fuel Injector (if necessary)

1. Disconnect the fuel injector connector for cylinder 2.
2. Use a noid light or multimeter to test for proper injector operation.
3. If the injector is faulty, remove it by unscrewing it from the fuel rail.
4. Install the new fuel injector and reconnect the connector.

5. Final Steps

1. Reconnect the battery terminal.
2. Start the engine and allow it to reach normal operating temperature.
3. Monitor engine performance and check for any reoccurring codes.