New Car Hits Engine Light and Misfire Issues After Just 200 Miles

A woman purchased a brand-new Kia vehicle, but just one week and approximately 200 miles after driving it off the lot, the dashboard illuminated the check engine light and displayed a message stating, “Vehicle will automatically shut down in 26 minutes and 56 seconds.” In a video inspection, a technician examined the car and found that although the diagnostic scan did not retrieve any fault codes and the engine initially appeared to be functioning normally, real-time data monitoring revealed a misfire in cylinder three when engine RPM was increased. Engine misfires are commonly caused by worn or faulty spark plugs, failed ignition coils, clogged fuel injectors, vacuum leaks in the intake manifold, or a dirty or malfunctioning mass airflow sensor—all of which can disrupt the engine’s air-fuel mixture. Misfires can lead to symptoms such as shaking or jerking during acceleration, reduced power, unstable idle, and increased fuel consumption. In some cases, the check engine light may not illuminate immediately.