If your 2022 Hyundai Elantra is displaying a P0305 code indicating a cylinder 5 misfire, this code requires diagnostic investigation. The 2022 Elantra offers only four-cylinder engines including the 2.0L naturally aspirated, 1.6L turbo, and hybrid variants. With only four cylinders numbered 1-4, P0305 is technically anomalous.
2022 Elantra Powertrain Options
The seventh-generation 2022 Elantra offers the 2.0L Smartstream I-4 (147 hp), 1.6L Turbo I-4 (201 hp on N Line), and 1.6L Hybrid system. All configurations use four-cylinder engines. No Elantra has ever offered more than four cylinders.
Understanding the Anomalous Code
Since the 2022 Elantra has exactly four cylinders regardless of configuration, a P0305 code cannot represent an actual cylinder 5 misfire. This is an erroneous diagnostic code.
Possible Causes
ECM software issues can store invalid codes. Scan tool communication errors may misread data. Low battery voltage affects ECM reliability. Aftermarket diagnostic tools may have compatibility issues with newer Hyundai electronics.
Diagnostic Steps
Use a Hyundai-compatible scan tool to verify codes. Test battery condition. If actual misfire symptoms exist, diagnose cylinders 1-4 using standard procedures. Clear the erroneous code and monitor for valid codes.