what does it mean if my Toyota RAV4 XA40 (2013-2018) has a P0302 code

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Disconnect the negative battery terminal to prevent electrical shorts.

2. Inspect and Replace Spark Plug

• Remove the engine cover (if applicable).
• Use a socket wrench to remove the spark plug from cylinder 2.
• Inspect the spark plug for wear and carbon deposits; replace if necessary (use spark plug gapping tool to set proper gap).
• Reinstall the new or cleaned spark plug and torque to the manufacturer's specifications (typically around 13-16 lb-ft).

3. Inspect and Replace Ignition Coil

• Disconnect the electrical connector from the ignition coil at cylinder 2.
• Remove the ignition coil mounting bolts and pull the coil out.
• Inspect the coil for damage; replace if necessary.
• Install the new ignition coil and reconnect the electrical connector.

4. Check and Replace Fuel Injector

• Disconnect the fuel injector connector at cylinder 2.
• Remove the fuel rail (if necessary) to access the injector.
• Inspect the injector for clogs or leaks; replace if necessary.
• Reinstall the fuel rail and reconnect the fuel injector connector.

5. Conduct Compression Test

• Remove the spark plug from cylinder 2.
• Insert a compression gauge into the spark plug hole.
• Crank the engine and record the compression reading. Compare with manufacturer specifications (usually around 150-200 psi).
• If compression is low, further investigation into engine internals may be required.