how to solve P0302 engine code on Toyota Camry XV40 (2007-2011)

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a flat surface.
• Disconnect the negative battery terminal to prevent electrical shorts.

2. Inspect and Replace Spark Plug

• Tools Required: Socket set, torque wrench, gap gauge.
• Remove the ignition coil from cylinder 2.
• Remove the spark plug using a spark plug socket.
• Inspect the spark plug for wear or damage; replace if necessary.
• Check and adjust the spark plug gap to the manufacturer specifications (typically 0.043 inches for the Camry).
• Install the new or inspected spark plug and torque to specifications (usually around 13 lb-ft).

3. Inspect and Replace Ignition Coil

• Tools Required: Socket set, multimeter (if testing).
• Remove the ignition coil from cylinder 2.
• Test the ignition coil with a multimeter to ensure it operates within specifications.
• Replace with a new ignition coil if the test indicates failure.
• Reinstall the ignition coil and ensure it is properly seated.

4. Check and Clean Fuel Injector

• Tools Required: Fuel injector cleaner kit, socket set.
• Remove the fuel injector from cylinder 2.
• Inspect the injector for clogs or damage; clean using a fuel injector cleaner, or replace if necessary.
• Reinstall the fuel injector and ensure it is properly seated.

5. 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 specifications (usually around 180-200 psi).
• If compression is low, further investigation of piston rings or valves may be necessary.

6. Reassemble and Check for Leaks

• Reinstall all components removed during the repair.
• Reconnect the negative battery terminal.
• Start the engine and check for any leaks around the repaired areas.