what does it mean if my Toyota Camry Eighth Generation (2018-present) has a P0302 code?

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to prevent electrical shorts.
• Allow the engine to cool before proceeding.

2. Inspect and Replace Spark Plug

• Tools Required: Socket set, torque wrench, spark plug socket
• Remove the spark plug wire or ignition coil from cylinder 2.
• Use the spark plug socket to carefully remove the spark plug.
• Inspect the spark plug for damage or excessive carbon buildup.
• Replace with a new spark plug, ensuring it is gapped to specifications.
• Torque the spark plug to the manufacturer's specifications (usually around 13-15 lb-ft).

3. Check and Replace Ignition Coil

• Tools Required: Socket set, multimeter
• Remove the ignition coil from cylinder 2.
• Test the ignition coil with a multimeter for proper resistance according to specifications.
• If defective, replace with a new ignition coil.
• Reinstall the ignition coil and ensure it is securely connected.

4. Perform Compression Test

• Tools Required: Compression tester
• Remove the spark plug from cylinder 2.
• Insert the compression tester into the spark plug hole.
• Crank the engine and record the compression reading.
• Compare with the manufacturer's specifications; if low, further diagnosis is required.

5. Inspect Fuel Injector

• Tools Required: Fuel injector cleaner or replacement injector
• Disconnect the fuel injector connector for cylinder 2.
• Use a multimeter to check for proper voltage at the injector connector.
• If voltage is present but the injector is clogged, clean or replace the injector as needed.
• Reconnect the injector and ensure it is seated properly.