Baro sensor off.
 

As i pop my hood to add a little bit of oil to my car. i realize my baro sensor was unsealed. i honestly don't know if it was sealed on or i broke it. but i can pull the top part off. is this very important like i shouldn't be driving with it like that? i can provide pictures if needed

Pictures please.

It is important, if it is broke get it fixed. Advance auto parts and use the discount codes at slickdeals.net

Can you give me an idea on what it does? please and thank you. and I'm gonna walk outside and take a picture of it now

The ECU uses it, it is essential to the tune.

Specifically in air volume/density calculations.