my Toyota RAV4 keeps throwing the P0302 code what could be wrong

Solution

1. Preparation

• Gather all necessary tools and parts.
• Disconnect the negative battery terminal to ensure safety.
• Allow the engine to cool before starting work.

2. Inspect and Replace Spark Plug

• Remove the engine cover if necessary using a socket set.
• Use a spark plug socket to remove the spark plug from cylinder 2.
• Inspect the spark plug for wear, deposits, or damage. Replace it if necessary.
• Torque the new spark plug to the manufacturer’s specification (typically around 13-15 ft-lbs).
• Reattach any components removed for access.

3. Check and Replace Ignition Coil

• Disconnect the electrical connector from the ignition coil for cylinder 2.
• Remove the ignition coil using a socket set.
• Inspect the coil for cracks or damage. Replace if faulty.
• Reinstall the new ignition coil and reconnect the electrical connector.

4. Conduct Compression Test

• Remove the spark plug from cylinder 2.
• Insert the compression gauge into the spark plug hole.
• Crank the engine for several seconds and record the compression reading.
• Compare the reading to manufacturer specifications. If low, further diagnostics may be required.

5. Inspect Fuel Injector

• Disconnect the fuel injector connector for cylinder 2.
• Use a noid light to check for injector pulse while cranking the engine.
• If there is no pulse, the injector may need to be replaced.
• If the pulse is present, remove the fuel injector and inspect for clogging or damage. Clean or replace as necessary.