E 250 3/4 Ton Van V8-5.4L CNG VIN M (1997)
Fuel Tank Temperature Sensor (CNG): Diagrams
Connector: C351 is at the NGV Fuel Tank Temperature Sensor.
Connector: C349 is at the NGV Fuel Tank Pressure Sensor.
There are no connector views for the C349 or C351 given. Refer to the wiring diagram.
There is an inline connector shared between the 2 sensors and the NGV module:
