well my ex GF called me today and told me something fell off her car when she went over a bump. i went over and looked and it basically is a black canister with a bunch of black sand in it, and has a couple vacuum lines on it. Is this for the emissions stuff or what? BTW its not a honda, its a '97 camaro V6, but i'm sure that this isn't the only car that has these. so does anyone know what it is and what its for?