Disconnect (Fuel Line Coupler)
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2001 Mazda Tribute, 2001 Mazda Protege, 2001 Mazda Millenia, 2001 Mazda MX-5 Miata, and 2001 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.
Disengage locking tabs on connector retainer. Separate retainer halves. Disengage fitting from regulator by pushing fitting toward regulator and inserting Fuel Line Coupling Key (49-UN01-006). See Figure.