my Genesis G70 IG (2017-2023) has a persistent P0302 code what does it mean

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure vehicle is parked on a flat surface and engine is cool.
• Disconnect the battery to prevent electrical shorts.

2. Replace Spark Plug

• Tools Required: Socket set, torque wrench, anti-seize compound.
• Remove the ignition coil from cylinder 2.
• Unscrew the spark plug using a socket wrench.
• Inspect the old spark plug for signs of wear or damage.
• Install the new spark plug, applying anti-seize compound to the threads.
• Torque the spark plug to the manufacturer’s specification (typically around 13-15 ft-lbs).

3. Test or Replace Ignition Coil

• Tools Required: Multimeter.
• Reconnect the ignition coil and check its resistance using a multimeter (compare against specifications found in the service manual).
• If out of spec, replace the ignition coil with a new one.

4. Inspect/Replace Fuel Injector

• Tools Required: Fuel injector puller, socket set.
• Disconnect the fuel injector connector.
• Remove the fuel rail to access the injector for cylinder 2.
• Inspect the injector for any blockage; clean or replace if necessary.
• Reinstall the injector and reconnect all components.

5. Compression Test (if necessary)

• Tools Required: Compression tester.
• Remove spark plugs from all cylinders.
• Install the compression tester into cylinder 2.
• Crank the engine and note the compression reading.
• Compare it to the manufacturer’s specifications. If low, further investigation into engine internals may be necessary.