Federal Vehicles

C.O. Potentiometer:

The CO potentiometer and air temperature sensor are incorporated into a single assembly, mounted to the air intake tube between the throttle body and the intercooler. The sensor is a thermistor type sensor, like the coolant temperature sensor. As temperature increases, electrical resistance decreases.

This sensor provides the Digifant control unit with information concerning the quantity and ambient temperature of the incoming air. Since cooler air is more dense than warm air, this information is necessary as a correction value for calculating air intake volume.