Help please

Try to remove the battery for 10 mins and then re-hook it up, if the light comes on again you need to take it to a place like auto zone and have them read for the code that is coming up ?

Try resetting the computer actually ran for a few feet and cut rite off when I did that auto zone said with at no check engine light that can't do anything

but your question said ( My check engine light won't go off )

ok so the car starts and only runs a few minutes sounds like you are not getting any fuel to the cylinders. check this out https://www.youtube.com/watch?v=JoWZz1ckRGw