what does it mean if my Genesis G70 shows a P0302 code

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the battery.

2. Inspect and Replace Ignition Components

• Tools Required: Socket set, torque wrench
• Remove the engine cover if applicable.
• Disconnect the wiring harness from the ignition coil on cylinder 2.
• Remove the ignition coil by unscrewing the mounting bolt.
• Inspect the spark plug for wear or damage; replace if necessary.
• Install a new spark plug if replaced, ensuring it is gapped correctly (check manufacturer specifications).
• Reinstall the ignition coil and tighten the bolt to the specified torque (typically 10-12 ft-lbs).

3. Check and Clean Fuel Injector

• Tools Required: Fuel injector cleaning kit (optional), socket set
• Disconnect the fuel injector connector.
• Remove the fuel injector retaining clips and pull out the injector.
• Inspect for blockage or carbon buildup; clean if necessary or replace if defective.
• Reinstall the injector ensuring it is seated properly and secure with clips.

4. Perform Compression Test

• Tools Required: Compression gauge
• Remove the spark plug from cylinder 2.
• Insert the compression gauge into the spark plug hole.
• Crank the engine several times and record the compression reading.
• Compare the reading to the manufacturer specifications; replace the cylinder head gasket if compression is low.

5. Reconnect Battery and Clear Codes

• Reconnect the battery terminals.
• Use the OBD-II scanner to clear the P0302 code.
• Start the engine and monitor for any reoccurring codes.