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

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the negative battery cable to prevent electrical shorts.

2. Replace Spark Plug

• Tools Required: Socket set, torque wrench, spark plug socket, anti-seize lubricant.
• Remove the ignition coil cover if applicable.
• Disconnect the ignition coil connector and remove the ignition coil from cylinder 2.
• Use the spark plug socket to remove the spark plug from cylinder 2.
• Inspect the spark plug for wear; if damaged, replace with a new spark plug, ensuring it is gapped according to manufacturer specifications.
• Apply anti-seize lubricant to the threads of the new spark plug and install it, tightening to the specified torque (usually around 13-15 ft-lbs).
• Reinstall the ignition coil and reconnect the connector.

3. Replace Ignition Coil (if necessary)

• If the ignition coil was found defective during diagnostics, replace it.
• Remove the faulty ignition coil from cylinder 2.
• Install the new ignition coil and reconnect the electrical connector.

4. Replace Fuel Injector (if necessary)

• If the fuel injector was clogged or malfunctioning, it may need replacement.
• Remove the intake manifold if required to access the fuel rail.
• Disconnect the fuel supply line and electrical connector from the fuel injector.
• Remove any retaining clips and extract the faulty fuel injector.
• Install the new fuel injector and reconnect the fuel line and electrical connector, ensuring proper seating.

5. Reconnect Battery and Clear Codes

• Reconnect the negative battery cable.
• Use the OBD-II scanner to clear the P0302 code and any other trouble codes.