i need to order a new piece / valcum plug ?  because insuarance isnt gna cover damages so gotta fix myself..... need help to order 
piece is circled in yellow
 
 
I believe that would be your evaporative emissions solenoid and the green cap is to the purge line/ orifice of the evap system. If you were talking about the green cap that is. 
 
 
that is correct, beat me to it
 
did it get busted in an accident?

-Chris