Kia Spectra idle shutdown issue after driving with recurring stalling and recent check engine light on Kia Spectra

Some Kia Spectra owners report experiencing issues such as idle shutdown after driving, recurring stalling, and the appearance of the check engine light. These problems may be linked to a malfunctioning Idle Air Control (IAC) valve, particularly in higher mileage models, which can lead to stalling at idle. Additionally, the check engine light may indicate underlying issues with the engine or emissions control system, potentially involving faulty spark plugs, O2 sensors, or mass airflow sensors. Some owners also note that their engine shuts down at stop lights due to an idle shutdown feature, which can be deactivated with a button that may need to be pressed each time the car is started. To address these concerns, it is advisable to check for OBD II codes when the check engine light is illuminated, inspect the air filter and vacuum hoses, and consider cleaning or replacing the IAC valve as necessary. Resolving these issues is crucial for ensuring optimal engine performance in the Kia Spectra.