how to fix P0302 code in my Toyota Camry XV70 (2018-2024)?

Solution

1. Preparation

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

2. Inspect and Replace Spark Plug

• Tools Required: Spark plug socket, ratchet, torque wrench.
• Remove the ignition coil cover if applicable.
• Disconnect the ignition coil connector and remove the ignition coil from cylinder 2.
• Remove the spark plug using a spark plug socket.
• Inspect the spark plug for damage or excessive wear. Replace with OEM spec spark plug if necessary.
• Torque the new spark plug to manufacturer specifications (typically around 13-16 lb-ft).
• Reinstall the ignition coil and connect the wiring harness.

3. Inspect and Replace Ignition Coil

• Tools Required: Ratchet, socket set.
• If the spark plug is fine, inspect the ignition coil for cracks or damage.
• Disconnect the ignition coil connector and remove the ignition coil.
• Replace with a new ignition coil designed for your model.
• Reconnect the ignition coil connector.

4. Inspect and Clean Fuel Injector

• Tools Required: Fuel injector cleaner, cleaning kit (if necessary).
• Check the fuel injector connector for damage.
• If necessary, remove the fuel injector and clean it with a fuel injector cleaning solution or replace it if it’s faulty.
• Reinstall the injector ensuring proper seating.

5. Check for Vacuum Leaks

• Tools Required: Smoke machine or carburetor cleaner.
• Inspect vacuum lines connected to the intake manifold for leaks.
• If leaks are found, replace damaged hoses or fittings.

6. Compression Test

• Tools Required: Compression gauge.
• Remove spark plugs.
• Install the compression gauge into the cylinder 2 spark plug hole.
• Crank the engine and record the compression reading.
• Compare the reading to manufacturer specifications. If low, further investigation into internal engine issues is required.