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

Solution

1. Preparation

• Gather all necessary tools and parts.
• Disconnect the battery to ensure safety while working on electrical components.

2. Replace Spark Plug

• Tools Required: Socket set, torque wrench, spark plug socket.
• Remove the ignition coil from cylinder 2 by unscrewing the bolts and disconnecting the electrical connector.
• Extract the spark plug using a spark plug socket.
• Inspect the old spark plug for damage, and install a new spark plug, ensuring it is gapped correctly.
• Torque the spark plug to manufacturer specifications (typically 13-16 ft-lbs).
• Reinstall the ignition coil and reconnect the electrical connector.

3. Inspect and Replace Ignition Coil (if necessary)

• Tools Required: Socket set, multimeter (if testing).
• If the ignition coil shows signs of failure (cracks, carbon tracking), replace it.
• Disconnect the coil connector and unscrew the coil from the engine.
• Install the new ignition coil and reconnect the electrical connector.

4. Clean or Replace Fuel Injector (if necessary)

• Tools Required: Fuel injector cleaner, basic hand tools.
• Remove the fuel rail to access the injector for cylinder 2.
• Clean the injector using a fuel injector cleaning kit or replace it if clogged.
• Reinstall the fuel rail and ensure all connections are secure.

5. Address Compression Issues (if detected)

• If the compression test indicated low values for cylinder 2, further investigation is necessary, potentially involving valve adjustments or a head gasket replacement.