ECU Master EMU - Page 46

It is also possible to connect narrow band oxygen sensor:
In the case of using 1 wire oxygen sensor the voltage read by EMU for stoichiometric mixture is
2.95V, for the 4 wire sensor it is 0.45V.
Page 46
EMU
B5
Narrow
Band
Oxygen
Sensor
1-wire lambda sensor wiring diagram
1
EMU
B5
B22
Narrow
Band
Oxygen
Sensor
1
2
3
4
1 – signal output
2 – signal gnd
3 – heater -
4 – heater+-
3A
+12V (po zapłonie)
4 wires lambda sensor wiring diagram