[marquis]

3 14/2 wires coming into a receptacle. How is it wired?

 

[DannyT]

we cant see it . how about a picture?

 

[joed]

Here's my guess.
If it is only a receptacle and there are no switches involved then connect all the blacks together and to the gold screw with a pigtail. Connect all the whites together and to the silver screw with a pigtail.

 

[Speedy Petey]

3 14/2 wires coming into a receptacle. How is it wired?

Could be one of several ways. Depends on a few variables, including is there a switch as part of this?
Considering the original question, I'd say it is best wired by an electrician. :thumbsup: