Range rover supercharged 5.0 2014 (6 oxygen sensors) I have fault on two sensors Bank1 Sensor3 and Bank2 Sensor3 the voltage is high. Oxygen sensors heating (thick wires) is perfect, tested with the bulb.
There are to wires that oxygen sensor is using apart from heating. voltage on one wire of sensor3 is constant 1.2 volts. nothing on the other wire. The same for both sensors 3.
I decided to test Bank1sensor2 on which there was no error. The wire has the same voltage of 1.2 volts, BUT we have ground on the second wire of sensor 2. When starting, on a working sensor 1.2V wire begins to change to 0.6-0.8 which is normal, whereas on both sensors 3 it does not change at all, still the same 1.2.
I checked the wires to the ECU- everything is in perfect.
At the same time, I tried to create a minus on a sensor3 wire where it should be - nothing changed, the voltage 1.2v was still the same on another wire of sensors 3.
Is it ECU or still faulty oxygen sensor? I will be very grateful for your help from people with experience)
There are to wires that oxygen sensor is using apart from heating. voltage on one wire of sensor3 is constant 1.2 volts. nothing on the other wire. The same for both sensors 3.
I decided to test Bank1sensor2 on which there was no error. The wire has the same voltage of 1.2 volts, BUT we have ground on the second wire of sensor 2. When starting, on a working sensor 1.2V wire begins to change to 0.6-0.8 which is normal, whereas on both sensors 3 it does not change at all, still the same 1.2.
I checked the wires to the ECU- everything is in perfect.
At the same time, I tried to create a minus on a sensor3 wire where it should be - nothing changed, the voltage 1.2v was still the same on another wire of sensors 3.
Is it ECU or still faulty oxygen sensor? I will be very grateful for your help from people with experience)
