Removing CNG Low Pressure Fitting
WARNING: This page is about a different car, the 2002 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
Raise and support vehicle. Close quarter turn valve. Partially lower vehicle. Start and run engine in with ALT/GAS switch in ALT position until engine stalls or automatically switches to GAS mode. Disconnect negative battery cable. Raise vehicle again. 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.