Fuel Injection Pressure Regulator. Fuel Pressure Regulator Notes: Eng: 1.3L L4; Compatible Years: 1990 1991 1992 1993 1994 1995 Item Specifics Contents: Includes Caution Sheet Functions: Regulator Nipple Orientation: Straight Notes: Includes O-Ring Operating Pressure – PSI: 57 psi System Type: Gas. Confirm Your Vehicle Compatibility. Eng: 1.3L L4. Also review the notes section in the compatibility chart for additional specifications about this part.