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

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a flat surface and the engine is off and cool.
• Disconnect the battery to prevent electrical shock.

2. Replace Spark Plug

• Tools Required: Socket set, torque wrench, spark plug socket.
• Remove the ignition coil from cylinder 2 by unscrewing it and gently lifting it out.
• Use the spark plug socket to remove the old spark plug from cylinder 2.
• Check the gap on the new spark plug and adjust to manufacturer specifications (typically 0.043 inches for most Toyota engines).
• Install the new spark plug and torque it to the manufacturer’s specification (usually around 13 lb-ft).
• Reinstall the ignition coil, ensuring it is seated properly.

3. Inspect and Replace Ignition Coil

• Tools Required: Socket set, multimeter (if testing).
• If the spark plug replacement does not resolve the issue, test the ignition coil.
• Remove the ignition coil from cylinder 2 and test for continuity using the multimeter.
• If faulty, replace the ignition coil with a new one.
• Reinstall the ignition coil securely.

4. Check Fuel Injector

• Tools Required: Noid light, fuel injector cleaner.
• Disconnect the fuel injector connector from cylinder 2.
• Attach a noid light to the connector and crank the engine to check for pulsing.
• If there's no pulsing, the injector may be faulty and should be replaced. If it is functional, consider cleaning the injector with a fuel injector cleaner.

5. Compression Test

• Tools Required: Compression tester.
• Remove the spark plug for cylinder 2.
• Insert the compression tester into the spark plug hole and crank the engine.
• Record the compression reading and compare it to specifications (usually around 180 psi for most Toyota engines).
• If compression is low, further diagnostics may be needed to check for internal engine issues.