my Genesis G70 IG (2017-2023) has a service engine soon light on, what’s the cause?

Solution

1. Preparation

• Gather tools and materials: OBD-II scanner, socket set, torque wrench, multimeter, replacement parts as needed.
• Ensure the vehicle is parked on a level surface and the engine is off.
• Disconnect the battery before starting repairs to prevent electrical shorts.

2. Address Engine Codes

• Connect the OBD-II scanner to the vehicle's diagnostic port.
• Retrieve and record any error codes.
• Research the codes to determine the potential cause of the issue (e.g., P0420 for catalytic converter efficiency).

3. Inspect and Replace Faulty Components

• Gas Cap:
  • Check for cracks or wear, replace if necessary.
• Air Filter:
  • Remove the air filter housing, replace the air filter if dirty.
• Spark Plugs/Ignition Coils:
  • Remove the ignition coils, inspect spark plugs for wear, and replace if needed.
  • Reinstall ignition coils and torque to specifications (consult service manual for values).

4. Clear Error Codes

• After making necessary repairs, reconnect the OBD-II scanner.
• Clear the error codes from the vehicle's memory.

5. Final Checks

• Reconnect the battery.
• Start the engine and observe for any abnormal noises or warning lights.
• Conduct a road test to ensure the vehicle operates smoothly.