how to fix the P0302 code on my Toyota Camry XV70 (2018-2024)

Solution

1. Preparation

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

2. Inspect and Replace Spark Plug

• Tools Required: Socket set, torque wrench, spark plug socket.
• Remove the ignition coil for cylinder 2 by unscrewing the retaining bolts and disconnecting the electrical connector.
• Remove the spark plug using the spark plug socket.
• Inspect the spark plug for wear or damage; replace if necessary.
• Install the new spark plug by hand, then torque it to the manufacturer’s specification (typically around 13-15 lb-ft).
• Reinstall the ignition coil and reconnect the electrical connector.

3. Check and Replace Fuel Injector

• Tools Required: Fuel injector puller (if needed), hand tools.
• Disconnect the fuel injector connector and unscrew the retaining clips.
• Carefully remove the fuel injector from cylinder 2.
• Inspect the injector for clogs or damage; replace it if necessary.
• Install the new fuel injector, ensuring it is seated properly, and reconnect the electrical connector.

4. Perform Compression Test (if needed)

• Tools Required: Compression tester.
• Remove the spark plug from cylinder 2 and install the compression tester.
• Crank the engine for a few seconds and record the compression reading.
• Compare the reading to the manufacturer’s specifications (typically around 180-200 psi).
• If the reading is low, further diagnosis of the engine's internal components may be required.