Delphi Universal Oxygen Sensor (Lambda - AFR VALUE)

dear arduino community,

i'm new here, want lambda monitor.

buyed 4 wire universal delphi o2 sensor



wiring connection:
black - sensor signal (+) - arduino a0
gray - negative -  arduino gnd

how can calculate lambda value in source code ?

any 1 can me ?

code: [select]


int sensorvalue=0;

void setup()
{
serial.begin(9600);              // setup serial connection testing
pinmode(a0, input); // set pin a0 input
}

void loop()
{
  int sensorvalue = analogread(a0);                     //read input sensor
  float afrvalue = sensorvalue * (5.0 / 1023.0);                    //convert v
  serial.print("afr value:");
  serial.println(afrvalue);
}


can share relevant data sheet of product.
mention output voltage level.

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