Flex-Fuel Ethanol Content Sensor
The flex-fuel sensor measures ethanol concentration in-line and outputs a digital PWM signal which is read by the ECU and facilitiates targeting of a dynamic stoichiometric ratio, depending on the ethanol to gasoline concentration ratio of the fuel.
The I/O ports stubs are 3/8" [9.52mm] O/D.
Pin 1 - 12v
Pin 2 -Ground
Pin 3 - PWM Out