ra ra rotory

I found some wires that im not to sure of what they go to. first the wire by the oil filter, its a ground for something, i dont know what, its black single wire and it has that liitle circualr thing on the end. the other one is a single green wire coming out from somewhere around the bottem of the intake manifold, where do these wires go, could they be my fuel delivery problem? thanks for any ideas, im working on getting some pics for ya

AreExSeven

Need a bit more info here.

What harness are they coming off of. What were you doing before you tried to put them back on (so I know what parts you removed and where they could possibly go), and what is your fuel problem?