what does it mean if my Toyota Camry has a P0302 code?

Solution

1. Preparation

• Gather necessary tools and parts. Ensure the vehicle is parked on a flat surface and the engine is cool.
• Tools Required: OBD-II scanner, socket set, torque wrench, compression gauge, multimeter.

2. Replace Spark Plug

• Remove the ignition coil from cylinder 2 by unscrewing the bolts and gently pulling it out.
• Remove the spark plug using a spark plug socket. Inspect the old spark plug for wear or damage.
• Install a new spark plug, making sure to use the correct gap setting specified in the owner's manual. Torque it to the manufacturer's specification (usually around 13-15 ft-lbs).
• Reinstall the ignition coil, ensuring it is securely fastened.

3. Test Ignition Coil (if necessary)

• If the spark plug replacement does not resolve the issue, test the ignition coil using a multimeter to check for proper resistance.
• If the resistance is outside manufacturer specifications, replace the ignition coil.

4. Inspect Fuel Injector

• If the ignition components are functioning correctly, proceed to inspect the fuel injector for cylinder 2.
• Remove the fuel injector connector and perform a resistance test. The resistance should match manufacturer specifications.
• If the injector is faulty, replace it and ensure proper sealing when reinstalling.

5. Check Compression

• If misfire persists, conduct a compression test on cylinder 2.
• If compression is below the manufacturer's specifications, investigate further for potential internal engine issues (e.g., valve problems, piston rings).