Usually.   If you see the light on, but the car feels like it is misfiring, you should probably take it to the mechanic to see if something serious is wrong.
assitant
It's pretty common for the engine light to be on, especially in cars that are 3-5 years old.  A lot of times it’s just a warning light.  If the light has been on for more than a week and it seems to be driving fine then that’s a sign that you should get it checked out, especially if you’re noticing any problems or have had any other problems with the car.
assistant
What should I do when I see the check engine light on in my car?
user
If the light is on and the car seems to be running normally, then just make a note to yourself to have a mechanic take a look.  You don’t need to take it to the shop just because you see the light.
assistant
So it's usually not anything major?
user