what does it mean if my Genesis G70 has a P0302 misfire code?

Solution

1. Preparation

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

2. Inspect and Replace Ignition Components

• Tools Required: Socket set, torque wrench, spark plug socket, multimeter.
• Remove the ignition coil for cylinder 2 by unscrewing the mounting bolts.
  • Inspect the ignition coil for cracks or damage; replace if necessary.
• Remove the spark plug for cylinder 2 using the spark plug socket.
  • Check for wear or carbon buildup; replace if necessary.
• Reinstall the new spark plug and torque it to the manufacturer’s specifications (usually around 13-16 lb-ft).
• Reinstall the ignition coil and ensure it is properly secured.

3. Inspect Fuel Injector

• Tools Required: Wrench set, fuel injector O-ring replacement kit.
• Disconnect the fuel injector connector for cylinder 2.
• Remove the fuel injector by unscrewing the retaining clip and pulling it out.
  • Check the injector for clogs or damage; clean or replace if necessary.
• Ensure the O-ring is in good condition; replace if worn. Reinstall the fuel injector.

4. Compression Test

• Tools Required: Compression tester.
• Remove spark plugs from all cylinders.
• Insert the compression tester into cylinder 2 and crank the engine.
  • Record the compression reading; compare with manufacturer specifications.
  • If the reading is low, further investigation into internal engine issues may be necessary.

5. Reconnect Battery and Clear Codes

• Reconnect the negative battery terminal.
• Use the OBD-II scanner to clear the P0302 code from the system.