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

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to ensure safety.
• Allow the engine to cool before beginning work.

2. Inspect and Replace Spark Plug

• Tools Required: Socket set, torque wrench, spark plug socket.
• Remove the ignition coil cover if necessary.
• Disconnect the ignition coil connector from cylinder 2.
• Remove the ignition coil by unscrewing the bolts.
• Take out the spark plug using the spark plug socket.
• Inspect the spark plug for signs of wear or fouling; replace it if necessary.
• Install the new spark plug, tightening to the manufacturer’s torque specifications (typically around 13-16 ft-lbs).
• Reattach the ignition coil and its connector.

3. Check and Replace Ignition Coil (if faulty)

• If the ignition coil is damaged or faulty, replace it with a new one.
• Reinstall the ignition coil as described above, ensuring it is properly seated.

4. Inspect and Repair Fuel Injector

• Tools Required: Fuel injector removal tool, socket set.
• Disconnect the fuel injector connector for cylinder 2.
• Remove the fuel rail if necessary to access the injector.
• Carefully remove the fuel injector and inspect it for clogs or damage.
• Replace the injector if it’s not functioning properly.
• Reinstall the fuel injector and ensure connections are secure.

5. Perform Compression Test (if needed)

• Tools Required: Compression tester.
• Remove the spark plug from cylinder 2.
• Insert the compression tester into the cylinder and crank the engine.
• Record the compression reading; compare it to the manufacturer’s specifications (generally between 180-200 psi).
• If readings are low, further investigation into internal engine conditions is required.