Removing CNG Low Pressure Fitting
WARNING: This page is about a different car, the 2002 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
Release fuel system pressure. See FUEL SYSTEM PRESSURE RELEASE . Disconnect negative battery cable. Raise and support vehicle. Remove compuvalve shield. Slowly crack open compuvalve low-pressure fittings. Disconnect fittings and remove and discard copper washer seals. Disconnect low-pressure line at fuel pressure regulator. Remove and discard copper washer seal.