The 2020 Kia Sportage features a 2.4L 4-cylinder engine producing 181 horsepower. This inline-4 contains only cylinders 1 through 4. When P0306: Cylinder 6 Misfire Detected appears, you're encountering an anomalous code.
Fourth-Generation Sportage
The 2020 Sportage continues with the proven 4-cylinder powertrain. No V6 has ever been offered. P0306 cannot indicate an actual misfire since cylinder 6 doesn't exist.
Why This Erroneous Code Appears
At this vehicle age, OBD-II port corrosion may affect data. Scanner interpretation issues cause false codes. Aftermarket devices create conflicts.
Proper Diagnostic Approach
Clear all codes and drive through conditions. Use Kia GDS or professional equipment. Clean and inspect OBD-II port. Focus on legitimate misfire codes (P0301-P0304).
Older Vehicle Considerations
The 2020 Sportage may benefit from port cleaning. Focus on valid codes for actual concerns.