If your 2022 Kia K5 is displaying a P0305 code indicating a cylinder 5 misfire, this code requires diagnostic investigation. The 2022 K5 offers only four-cylinder engines: the 1.6L turbo and 2.5L turbo (GT). With only four cylinders, P0305 is technically anomalous.
2022 K5 Powertrain
The 2022 K5 offers the 1.6L Smartstream Turbo I-4 (180 hp) and 2.5L Smartstream Turbo I-4 (290 hp on GT). Both are four-cylinder configurations. The K5 replaced the Optima without carrying over the V6 option.
Understanding the Anomalous Code
Since the 2022 K5 has exactly four cylinders regardless of trim, 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 Kia's electronics.
Diagnostic Steps
Use a Kia-compatible scan tool to verify codes. Test battery condition. If actual misfire symptoms exist, diagnose cylinders 1-4. Clear the erroneous code and monitor.