If your 2020 Kia Sportage is displaying a P0305 code indicating a cylinder 5 misfire, this code requires diagnostic investigation. The 2020 Sportage offered only a four-cylinder engine: the 2.4L naturally aspirated I-4. With only four cylinders numbered 1-4, P0305 is technically anomalous.
2020 Sportage Powertrain
The fourth-generation 2020 Sportage used the 2.4L Theta II I-4 producing 181 horsepower across all trims. No V6 or larger engine was available. This configuration has exactly four cylinders.
Why P0305 Is Anomalous
With exactly four cylinders, a P0305 code cannot represent an actual cylinder 5 misfire. This indicates a diagnostic system error requiring investigation.
Possible Causes
A 2020 model may have battery degradation affecting ECM reliability. Scan tool communication errors may misread data. ECM software issues can store invalid codes. Aftermarket diagnostic tools may have compatibility issues.
Diagnostic Recommendations
Use a Kia-compatible scan tool to verify codes. Test battery condition—a 2020 vehicle may need battery evaluation. If actual misfire symptoms exist, focus on cylinders 1-4. Clear the erroneous code.