what does it mean if my Toyota RAV4 XA50 shows a P0302 code?

Solution

1. Preparation

• Tools Required: OBD-II scanner, socket set, torque wrench, compression tester, vacuum gauge.
• Gather replacement parts if necessary (spark plugs, ignition coil, fuel injector).
• Safety Warnings: Disconnect the battery before starting any electrical work.

2. Replace Spark Plug

• Remove the engine cover if necessary.
• Disconnect the ignition coil connector for cylinder 2.
• Remove the ignition coil using a socket set.
• Unscrew the spark plug using a spark plug socket and inspect for wear or damage.
• Install a new spark plug (ensure proper gap settings as per manufacturer specifications).

3. Replace Ignition Coil (if necessary)

• If the ignition coil is found defective, install a new ignition coil.
• Ensure the coil is seated correctly and reconnect the ignition coil connector.
• Reinstall the engine cover.

4. Inspect and Clean Fuel Injector

• If the fuel injector is suspected to be clogged, remove it using a ratchet and socket.
• Clean the fuel injector using a specialized cleaning solution or replace it if cleaning does not resolve the issue.
• Reinstall the fuel injector, ensuring it is seated properly.

5. Conduct Compression Test

• Remove the spark plug from cylinder 2.
• Insert the compression tester into the spark plug hole.
• Crank the engine and record the compression reading. Compare it with manufacturer specifications.
• If the compression is low, further investigation may be needed for internal engine issues.