what does error code P0302 mean for my Toyota RAV4 Fifth Generation (2019-present)

Solution

1. Preparation

• Gather tools and parts for the repair.
• 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 from cylinder 2.
• Use the spark plug socket to remove the spark plug and inspect it for wear or fouling.
• If damaged, replace with a new spark plug, ensuring it meets manufacturer specifications (typically, torque to 13 lb-ft).

3. Inspect and Replace Ignition Coil

• Tools Required: Ratchet and socket set.
• If the spark plug is in good condition, check the ignition coil for proper operation.
• Remove the faulty ignition coil from cylinder 2 and replace it with a new one.
• Reconnect the ignition coil securely.

4. Inspect and Clean Fuel Injector

• Tools Required: Fuel injector cleaning kit (optional), safety glasses.
• Disconnect the fuel injector connector and remove the fuel injector from cylinder 2.
• Inspect for clogs or damage. If clogged, consider cleaning or replacing the injector.
• Install the new or cleaned injector and reconnect the connector.

5. Perform Compression Test

• Tools Required: Compression tester.
• Remove the spark plug from cylinder 2.
• Install the compression tester and crank the engine to get a reading.
• Compare the compression reading to manufacturer specifications; if low, further engine diagnostics may be needed.