Removal (2.4L)
WARNING: This page is about a different car, the 2002 Pontiac Sunfire and 2002 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
Remove the fuel rail. See FUEL RAIL & INJECTORS . Remove the pressure regulator attaching screw. Remove the pressure regulator assembly from the fuel rail. Twist the assembly back and forth while pulling.