A P0306 diagnostic code on a 2022 Genesis GV80 indicates a cylinder 6 misfire, but validity depends on which engine your GV80 has.
2022 Genesis GV80 Engine Options
- 2.5T: 2.5L turbocharged 4-cylinder (300 hp) - P0306 is invalid
- 3.5T: 3.5L twin-turbo V6 (375 hp) - P0306 is valid
If you have the 3.5T V6, this code indicates a genuine misfire. If you have the 2.5T 4-cylinder, P0306 is impossible since that engine only has cylinders 1-4.
V6 Misfire Causes
- Ignition Coil Failure: Twin-turbo heat stresses components
- Spark Plug Wear: High-pressure combustion effects
- Fuel Injector Problems: Direct injection issues
- Boost Leaks: Twin-turbo system air leaks
- Carbon Buildup: Intake valve deposits
- Mechanical Issues: Low compression from wear