Reading Analog Voltage (<190 ohms)

Im building a voltage reader for a Fuel sending Unit for vehicles, the problem i have is that the voltage from the resistance in the sending unit ranges from 109Ω (Tank empty) to 3Ω (Tank full less resistance), attached images of multimeter http://imgur.com/a/Lsuax

The A0 Pin in the ESP8266 Nodemcu gives me readings of 0.00v
(attached images of nodemcu wiring)

esp8266 fuel sending unit
A0 -> Sender
GND -> Ground

Any help on boosting a voltage to make it readable, or maybe i have an error in the wiring?

Thanks

Code below

String getVoltage()
{
  sensorValue = analogRead(sensorPin);
  // had this because i was using a Voltage divider in between ESP and Fuel Sending unit, but same readings of 0.00, now im reading directly from ESP A0 pin
  // vout = (sensorValue * 3.3) / 1024.0;
  // vin = vout / (R2 / (R1 + R2));
  return  (String) sensorValue;
}

the voltage from the resistance in the sending unit ranges from 109Ω (Tank empty) to 3Ω (Tank full less resistance)

Sorry, but this makes no sense. The sensor needs to be powered and used in a voltage divider circuit with another resistor. fuel gauge voltage divider arduino - Google Search

i did use a Voltage Divider, but the readings are the same 0.00V, the code that i used with the voltage divider is commented out.

How did you power the sensor?
What resistor did you use in the voltage divider?
Post a circuit diagram.