how to resolve the P0302 code on my Toyota RAV4 Fourth Generation (2013-2018)?

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Disconnect the battery to prevent electrical shorts.
• Allow the engine to cool if it has been running.

2. Replace Spark Plug

• Remove the engine cover if equipped.
• Locate the spark plug for cylinder 2 (consult the vehicle manual for location).
• Use a socket wrench to remove the spark plug.
• Inspect the old spark plug and compare it with the new one for correctness.
• Apply anti-seize on the threads of the new spark plug, if applicable.
• Install the new spark plug by hand and then tighten it to the manufacturer’s specified torque (typically around 13-15 ft-lbs).

3. Check and Replace Ignition Coil

• Disconnect the electrical connector from the ignition coil on cylinder 2.
• Remove the mounting bolts from the ignition coil using a socket set.
• Pull the ignition coil straight out of the spark plug tube.
• Compare the old coil with the new one to ensure proper fit.
• Install the new ignition coil and secure it with bolts, torquing to the manufacturer’s specifications.
• Reconnect the electrical connector to the ignition coil.

4. Inspect and Clean Fuel Injector

• Locate the fuel injector for cylinder 2.
• Disconnect the fuel line and the electrical connector from the injector.
• Remove the mounting bolts holding the injector in place.
• Carefully pull the injector out, ensuring the O-ring comes off with it.
• Inspect the injector for clogs or damage; clean if necessary or replace if faulty.
• Install the new or cleaned injector, ensuring a proper seal with a new O-ring.

5. Reassemble and Test

• Reattach any engine covers and reconnect the battery.
• Start the engine and check for any error codes.
• Perform a test drive to ensure the issue is resolved.