Driving on a trip, the check engine light comes on. The oil pressure is normal and the temp gauge is normal, the gas cap is properly sealed, is it ok to continue driving 2 to 3 hundred miles
If the light isn’t flashing then its probably fine. If you want better info though, you can pull into any major auto parts store chain (e.g. Autozone, Advance, Checkers, etc) and they will pull the error codes for free (unless you’re in CA, I think). Write down the exact code - e.g. “P1234” - and post it.