what does the check engine light code P0302 mean for my Toyota RAV4 Fifth Generation (2019-present)

Solution

1. Preparation

• Tools Required: OBD-II scanner, socket set, torque wrench, multimeter, compression tester, fuel injector tester.
• Safety Warnings: Disconnect the battery before working on electrical systems.

2. Inspect Ignition Components

• Remove the engine cover (if necessary) to access ignition components.
• Disconnect the ignition coil connector for cylinder 2.
• Remove the ignition coil using a socket set and inspect for cracks or carbon tracking.
• Remove the spark plug from cylinder 2 and inspect for wear or damage. Replace if necessary.
  • Torque Specification: Install spark plug to 13 lb-ft (18 Nm).
• Reinstall the ignition coil and reconnect the connector.

3. Test Fuel Injector

• Connect the fuel injector tester to the injector for cylinder 2.
• Activate the fuel injector and check for proper operation.
• If the injector is faulty, replace it using the following steps:
  • Disconnect the fuel line (use caution, as fuel may spill).
  • Remove the fuel rail bolts and lift the rail to access the injector.
  • Remove the injector, replace it with a new one, and ensure proper seating.
  • Reinstall the fuel rail and reconnect the fuel line.

4. Check Compression

• Remove the spark plug from cylinder 2.
• Insert the compression tester into the spark plug hole.
• Crank the engine and record the compression reading.
  • Normal Compression Range: 150-200 psi; replace the cylinder head gasket or repair if low.
• Reinstall the spark plug.

5. Final Assembly

• Reconnect all components and ensure all connections are secure.
• Reinstall the engine cover if removed.