The 2022 Hyundai Elantra features 4-cylinder engines—the 2.0L MPI or 1.6L turbo depending on trim. Both are inline-4 configurations with only cylinders 1 through 4. When P0306: Cylinder 6 Misfire Detected displays, you're facing an anomalous code.
Seventh-Generation Elantra
The 2022 Elantra introduced Hyundai's bold new design language with efficient 4-cylinder powertrains. No V6 option exists in any Elantra configuration. P0306 cannot indicate an actual misfire since cylinder 6 doesn't exist.
Sources of Erroneous P0306
Generic scanners may misinterpret Hyundai's diagnostic protocols. Communication glitches generate incorrect codes. Aftermarket devices can interfere with data transmission. Scanner databases may produce inappropriate cylinder codes.
Diagnostic Protocol
Clear all codes and drive through various conditions. Use Hyundai GDS or professional equipment for accurate readings. Inspect the OBD-II port for issues. Remove aftermarket devices temporarily. Check for valid misfire codes (P0301-P0304) if drivability concerns exist.
Award-Winning Design
The 2022 Elantra's striking design paired with efficient powertrains makes it an excellent compact sedan. Focus on valid codes for any actual drivability concerns.