Flex Fuel Sensor (FFS) - North AMERICAN Specification (NAS) - From 13.5 My - All V8 SC 5.0L Petrol (Except XFR-S)

The Flex Fuel Sensor (FFS) is located in the left rear of the engine compartment. The FFS is attached to a bracket below the cowl panel. The bracket is mounted via isolation rubbers to absorb vibration.

The FFS has one electrical connector with three pins; one for 5V power supply from the ECM, and a signal return and a ground connections to the ECM.