So i'm thinking of adding a fuel pressure gauge in my Aveo but I dont know what size the schrader valve fitting on my fuel rail is... and its welded to the rail so its not removable, the electric sender is a 1/8 male NPT fitting, so I need to find a 1/8NPT x ??? female/female coupler i'm guessing...

Oh.. and mines the 2010 so its the 1.6L Ecotec