Ibiza 1.4TDI to VNT

[vasco fernandes]

Hi all

Does anyone know how to enable VNT on my file?

[vasco fernandes]

anyone knows help !? :s:

I modified PID controllers, but I think it is not enough... what needs to change??

[ominimicu]

VNT or not..it is still controlled by the same ECU. is it not blowing at all?

[vasco fernandes]

Turbo is blowing and EGR is vacuum.

I also need the valve box of the PD130 and the vacuum accumulator.

Turbo will be 17vb.

Is possible enable the VNT in file, but do not know how.. :s:

[azibi130]

Turbo is blowing and EGR is vacuum.

I also need the valve box of the PD130 and the vacuum accumulator.

Turbo will be 17vb.

Is possible enable the VNT in file, but do not know how.. :s:
vasco, i think theres some kind of switch to enable VNT, but i can't help with that, just a thought i have...

[vasco fernandes]

Yes, there are some switches. I tried to damos file, but I unsuccessfully.

[spawns3]

Yes, there are some switches. I tried to damos file, but I unsuccessfully.


And news about that ? I m looking the same thing , found some switchs , something to do with the frequecy of the LDR .

[kinetic]

You dont need the box, just need to fit N75 valve correctly connected to your own box pinout and activate duty cicle on dump. Abra

[ecutuner]

:laugh:

Have you ever tried this by your own on *real* Hardware?
Theres a little bit more than that!

Its possible, but you have to enable VNT/VTG, theres a switch to define the pressure-controller inside the software. You can define it as not controlled (SDI), controlled Wastegate, controlled VTG/VNT.

The Problem is that you have to change some Maps and the output-linearisation of the Pressure-controller, too. Thats because VTG/VNT works the opposite way (in controlling) as the wastegate-controller (therefore: pressure above set point, VTG or Wastegate opens - but look at the hardware and the pwm-signal to the N75, its mirrored for waste gate!).
And even more: the wastegate is only used to reduce boost (above setpoint) but the VTG is used to "form" the boost depending on rpm and injection amount).

So to find the switch and everything needed its the best to find 3 softwares...
- 1 VTG-file
- 1 Wastegate-file
- 1 SDI-file
BUT... you have to look that the software numbers (VW-Softwarenumber on EDC15) or at least the BOSCH-Numbers are as close as possible.
Then compare the files and you will see the differences!