How to stop/repair engine check warning lamp illuminating on a car

The engine check warning lamp is available in all modern cars and it may illuminate especially when a car becomes old. If the engine check warning lamp illuminates when the engine is running, this indicates a malfunction. The engine will continue to run but it will have limited power. But sometimes the engine check warning lamp illuminates in a car during cold weather especially during morning hours and disappears after the car engine get warmer or till we restart the engine after a few seconds or a minute. I am sharing a small video how to solve this small problem which one can do it at home. I am showing/using a Ford Figo car 2010 model to show how to clean the sensor to stop showing/illuminating the engine check warning lamp. When we accelerate our car, the dirt in the airflow sensor sends wrong signals to the car computer and as a result malfunction lamp illuminates in our car screen. We can clean the airflow sensor using a clean cloth dip in petrol or diesel.