Service engine message

I think that my vehicle is posessed. Every morning when I go to work the engine check light comes on. I decided to take it to autozone. They said that there are no codes in the vehicle. but when i get home from school at night, the engine check light is not there.
If i had to think about it, to he it seems like there has to be a sensor that checks if its light out and tries to turn on the auto lights on and its got to be bad.
Has anyone ever experienced this before,
or am I going crazy.

Welcome to AF, a full scan should show a history code. Your theory is invalid.The CEL is supposed to come on just as the car starts, that is normal, unsure what you are try to say here.

The engine check light just stays in during the days but at night it does not show. I don't think that's normal.