my Genesis G70 IG (2017-2023) has a check engine light and code P0302, what should I do?

Solution

1. Preparation

• Gather all necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the battery to avoid any electrical shorts.

2. Inspect and Replace Spark Plug

• Tools Required: Spark plug socket, torque wrench, ratchet
• Remove the engine cover if applicable.
• Remove the spark plug wire or ignition coil for cylinder 2.
• Use a spark plug socket to remove the spark plug.
• Inspect the spark plug for signs of wear, damage, or carbon buildup.
• Install a new spark plug, ensuring it is gapped correctly (refer to manufacturer specifications).
• Torque the spark plug to manufacturer specifications (usually around 13-18 lb-ft).

3. Check and Replace Ignition Coil

• Tools Required: Ratchet, socket set
• Remove the ignition coil for cylinder 2 by unscrewing the mounting bolts.
• Inspect the ignition coil for cracks or damage.
• Replace with a new ignition coil if necessary.
• Reinstall the ignition coil and secure it with the mounting bolts to manufacturer torque specifications.

4. Inspect and Test Fuel Injector

• Tools Required: Fuel injector tester or multimeter, socket set
• Disconnect the fuel injector connector for cylinder 2.
• Use a multimeter to check the resistance of the injector (should be within manufacturer specs).
• If the injector is faulty, remove it using a socket set.
• Replace with a new fuel injector and reconnect the connector.

5. Perform Compression Test (if necessary)

• Tools Required: Compression tester
• Remove the spark plug for cylinder 2.
• Insert the compression tester into the spark plug hole.
• Crank the engine and record the compression reading.
• Compare the reading to manufacturer specifications.