how to fix P0302 misfire code in Toyota Camry XV50 (2012-2017)

Solution

1. Preparation

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

2. Inspect and Replace Spark Plug

• Remove the ignition coil and spark plug from cylinder 2.
• Inspect the spark plug for fouling, wear, or damage. Replace if necessary.
• Torque the new spark plug to the manufacturer's specification (usually around 13 lb-ft).
• Reinstall the ignition coil ensuring it clicks into place.

3. Inspect and Replace Ignition Coil

• If the spark plug is in good condition, inspect the ignition coil for damage.
• Replace the ignition coil if visual inspection shows cracks or wear.
• Torque the ignition coil bolts to the specified value (typically around 7.2 lb-ft).

4. Check and Replace Fuel Injector

• If issues persist, remove the fuel injector for cylinder 2.
• Test the injector with a noid light or multimeter to confirm proper operation.
• Replace the fuel injector if it is not functioning correctly.
• Reinstall the injector and secure it according to manufacturer's specifications.

5. Final Assembly and Reset

• Reconnect the battery terminal.
• Clear the error codes using the OBD-II scanner.
• Start the engine and allow it to reach operating temperature.