my Toyota Camry XV40 (2007-2011) has a P0302 code, what should I do?

Solution

1. Preparation

• Gather all necessary tools and parts.
• Disconnect the battery to prevent electrical shorts.
• Allow the engine to cool before starting work.

2. Inspect and Replace Spark Plug

1. Remove Engine Cover (if applicable)
   • Use a socket set to remove any bolts securing the cover.
2. Remove Ignition Coil
   • Disconnect the electrical connector.
   • Unbolt the ignition coil using a socket wrench and remove it from the cylinder head.
3. Remove Spark Plug
   • Use a spark plug socket to carefully unscrew and remove the spark plug from cylinder 2.
4. Inspect and Replace
   • Inspect the spark plug for wear and carbon deposits. Replace it if it shows signs of damage or excessive wear (recommended gap: 0.043 inches).
   • Reinstall the new spark plug and torque it to manufacturer specifications (15 ft-lbs).

3. Inspect and Replace Ignition Coil

1. Check Ignition Coil
   • Visually inspect for cracks or damage. Test with a multimeter for proper resistance (typically 0.5-0.7 ohms).
2. Replace Ignition Coil (if necessary)
   • Install the new ignition coil, ensuring it seats properly and reconnect the electrical connector.
   • Reinstall any components removed to access the ignition coil.

4. Check Fuel Injector

1. Inspect Fuel Injector
   • Remove the fuel rail if necessary to access the injector. Check for clogs or debris.
2. Test Injector Operation
   • Use a fuel injector tester to confirm proper operation. Replace if it fails the test.
3. Reinstall Components
   • Reattach the fuel rail and ensure all connections are secure.