my Genesis G70 has a check engine light and code P0302 what does it mean

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the battery before beginning work to ensure safety.
• Allow the engine to cool down if it has been running.

2. Replace Spark Plug

• Remove the ignition coil from cylinder 2 by unscrewing it (typically a few bolts).
• Disconnect the connector from the ignition coil.
• Remove the spark plug using a spark plug socket and ratchet.
  • Check the spark plug for wear; replace if it appears damaged or worn out.
• Install the new spark plug, ensuring it is torqued to the manufacturer’s specifications (typically 13-15 lb-ft).
• Reattach the ignition coil and connector.

3. Inspect and Replace Ignition Coil (if necessary)

• If the ignition coil showed signs of damage during inspection, replace it.
• Remove the faulty ignition coil and install the new one, ensuring it is securely fastened and connected.

4. Test Fuel Injector

• If the spark plug and ignition coil are functional, check the fuel injector for cylinder 2.
• Disconnect the fuel injector connector and use a multimeter to test for resistance (consult vehicle specifications for acceptable values).
• If the injector is faulty, replace it with a new one.

5. Perform Compression Test (if misfire persists)

• Remove the spark plug again from cylinder 2.
• Insert the compression tester into the spark plug hole and crank the engine to take a reading.
• Compare the reading to the specifications; if it is low, further investigation is required for potential internal engine issues.