Red Oil Light Activation in Volkswagen T5 2.5 tdi 130km Post-Turbo and Oil Pump Replacement

Hello
I am asking everyone for help in solving my problem, namely how the red light from the oil lights up in the subject, to make it more interesting after replacing the turbine (first suspicions), after replacing the oil pump, the bushings on the shaft look nice (in the opinion of the mechanic), after connecting the manometer, the pressure at idle speed is around 0.9bar, at 2000 revolutions, about 1.7-1.8 bar at 4000 revolutions, even 4bar, and the strangest thing is that this indicator lights up even when the pressure gauge was attached and the sensor was unplugged and always after exceeding 1500 revolutions. I am asking for advice because my hands are falling on this wonderful German car.

Such pressure signaling miracles happen with either a broken or overloaded alternator. From what I once read on the vw forum it was about a single-wire sensor.

The alternator gives a voltage of 14.2V, I checked, but I do not remember how many wires go to the sensor tomorrow I will call the mechanic and check

The cable from the sensor to the set of indicators and the indicators themselves to be checked.

moto-kord wrote:

Cable from sensor to to be checked

Cubes next to the controller under the battery. They like to tarnish.

Thanks for all the advice they will be used.

The case was resolved, the new sensor turned out to be nuts after replacing it with another, everything ok