VW Golf IV 1.9 TDI 90HP AGR: N75 Hose Size, Function & Impact on Power (110-120 km/h)

Hello. This is my first post so if I write it not on this subject, I apologize very much.
VW GOLF IV 1.9 TDI 90HP AGR

The problem looks like this. What is the tube for what it is used for and its size. I noticed that it is connected from N75 to the trubin from the bottom (if I'm not mistaken). I have located a hole in it, I will add that the car is not pulling so much from 110-120 (as if it cut off the power). I have already read in this forum that it is notlauf.

My questions.
1. What is the hose, what it is used for and its size (red), because I would like to replace it.
2. Could this be the cause of the notlauftu?

I have already read the mass of the forum and I have no idea, besides I am not a mechanic but I like to bury and repair myself.
If anyone can help, then please. Greetings.
333.jpg Download (3.41 MB)
111.jpg Download (1.53 MB)
222.jpg Download (1.81 MB)

If it goes from the N75 to the turbine bulb, it is from the control of the boost pressure.
It can not be leaking because in this case the pressure on the turbine will not reach the required temperature and will be notlauf.
3.2mm size.
Fits from transfers on injectors.

This tangle does not get into the pears. It is simply connected directly to the turbine from the bottom. I will try to take a picture of how I can put my hand in it.

The red in the shell gives pressure to the valve, the side exit of the valve to the coals, the upper air filter

andrzej20001
Do you write about the exits of N75?

Yes, he described the connection of the valve.
This red tube is rather thicker.
It must be connected to the N75 to coo otherwise it will not control the turbine.

Kokuj wrote:

2. Could this be the cause of the notlauftu?

Yes. There, the turbine has a bleed valve, non-variable geometry, and the actuator is controlled by overpressure, not "under", so any leakage will increase the pressure of the supercharging and cut off the fuel dose by reloading, the so-called notlauf.

For the sake of clarity I made a diagram.
3 hairs from the N75 valve:
zawor n...jpg Download (3.94 MB)

- red (in the shell gives pressure, as wrote 200, and it just is leaky and enters here - marked by a colic)
dziurja zb...izenie.jpg Download (4.22 MB)
wejscie cz... turbo.jpg Download (2.92 MB)

- blue (he is connected to coo and is sealed - he does not give pictures here)
-yolty (on the photo with the colic I will show where he is plugged in, he is also cheeky)
wezyki.jpg Download (3.18 MB)
zolty wezy...piecie.jpg Download (3.05 MB)

I checked exactly how these tones run.
Also my question is. What is the diameter of this red 3.2 mm or 4 mm voile? in my hand it was hard to feel, maybe this red actually has 4mm and if I would give 4mm and it would be that it should be 3.2mm or is it dangerous?
Maybe replacing it will cancel the notlafta effect

greetings

Buy 3.2 but with a canvas between layers, not on top. I always give Gates away from transfers.

3.1mm hight inserted with a braid. I do not know if Gates was just 3.2mm. Then he will write whether the note has resolved.

The tsar listed and notlauf set, the car flashes as necessary. In addition, clean the EGR valve and the suction manifold.
Thank you for your help and best regards.
I close the subject