A P0303 diagnostic code on your 2022 Genesis GV80 indicates the engine control module has detected repeated misfires in cylinder 3. The flagship SUV offers turbocharged four-cylinder and V6 powertrains.
GV80 Engine Options
The 2022 GV80 offers the 2.5L turbocharged four-cylinder (300 hp) or 3.5L twin-turbo V6 (375 hp). On the inline-4, cylinder 3 is third from the front. On the V6, cylinder 3 is on one bank.
Common Causes
- Ignition Coil Failure: Turbo/twin-turbo applications stress ignition
- Spark Plug Issues: High-output engines require specific plugs
- Boost System Leaks: Charge pipes and intercooler connections
- Fuel Injector Problems: Direct injection deposits
- Carbon Buildup: GDI technology leads to valve deposits
Diagnostic Approach
Use Genesis diagnostic equipment for detailed access. Monitor boost pressure and misfire counts. Test ignition components systematically. The V6 has twin turbochargers adding complexity.
Repair Solutions
Replace failed ignition coils with OEM components. Install Genesis-specified spark plugs. Repair boost system leaks. Address carbon buildup through professional cleaning.