Check engine light on having is a common issue. Different problems can be an indicator of this.

1. Code scanner use

⦁ First of all, The OBD-II scanner read the diagnostic code the scanner.
⦁ Scanner which code with come note the code, This code is indicate where could the problem be.

2. Check the common causes

⦁ Mass airflow sensor: To this sensor clean or replace, If it could be a fault.
⦁ Spark plug or ignition coils: Replace the spark plug or coil. If it is over.
⦁ oxygen sensor: If fault of sensor, It has to replace.
⦁ Loose Gas Cap: Tight the gas cap. And check the light off or not.

3. Fix minor issues

⦁ Battery disconnect: Sometimes, Minor issue can be reset. battery for some time disconnect, Issue ECU can be reset. But stop it when light reason is minor.
This step is follow your issue will be fixed