Edc15p audi a3 8l 130hp, map an overboost...

[ciullo.eugenio]

Hi guys,
I have a a3 8l 1.9 tdi 130hp with a GT1749VA
I would like to ask you some advice about the map that ecm titanium called time of an overboost...
to understand how to work this map I tried to set it all to zero...
I have written and I have tried the machine on a straight, 2-km...
the car was from god! between gear shifting, there was no lag on the part of the turbine... every changed gear the car sgommava...
only that... I've done more or less 1 kilometer and a half, and the turbine has left me on the street...
my question is... how to go touched this map?

currently I have a GT1749VB, from a controller I set the map limit to the turbo and n75(time of an overboost) with the same increments of the golf 4 150cv.
I would like to know how and with which criterion has to be touched to the map n75 time of an overboost, and if it is correct that he put the values of golf...

[valerio85]

hello,
apart from that, ecm titanium is not reliable as regards the names that the various maps;
with regard to what you say, I think that refers to the control of the variable geometry of the turbo (internal vanes).
the vanes of the variable geometry open and close to optimize the boost pressure, and are controlled by the valve pierburg.
here is a video that explains how they work
VGT VNT TURBO - YouTube
as much as I've seen, if in the ecm are increased by the values in the table, the machine will impigrisce, then it can be deduced that higher values = palette open so the pressure drops; the values for lower = palette more closed then pressure more high. putting it to 0 you did work the turbo pressure stratospheric! I suggest you put the original mapping and go to step -2.5% at a time up to a maximum of -10%, but do not overdo it in the areas of engine torque (1500-2500 rpm where there is the intervention of an overboost).
if I'm wrong, correct me as well! greetings

[tranky]

Make a diagnosis with the log and see the values as they arrive and have them estimate what and how to do it before you spend the money for spare parts

[ciullo.eugenio]

I made the log with the map ori, and the result is this...

LOG-02-001-011-008.zip

as you know from the map is set to more than 70 percent above the 2300rpm but she fails to go beyond 65%

making a map, inspired by the values of arl (I've seen the troubles of the arl), this is the result

09042016.zip

needless to say, you can also see from the chart...

the car pulls badly, pushes at times, and when it is hot I can hear a noise ferraglioso... as if sfiatasse somewhere, I can't explain it, maybe I've got the classic problem of the turbo spiking, and it is a problem that makes me both with the original map with modified map...

according to you from these log... the n75 is working bad? if he works evil, and I put new, it is correct that from the map I insert the values of the n75 in the arl?

[valerio85]

hello, unfortunately I do not have access to the link.
but I'm sorry, give us some info on the turbine that you have mounted on.. how many km it has? in what conditions are you? noise ferragliso.. in what condition is the impeller? dance? the tubes of the lubrication as they are? the variable geometry? etc

[ciullo.eugenio]

the turbine is "new" (regenerated), is a GT1749VB from an ibiza cupra fr 160hp, currently has more or less 2000 km, the impeller is new, as well as all coreassy, tubes of lubrication, I have cleaned all, the variable geometry is smooth (I tried to move the rocker arm under the westegate)...
If you can't see the log I will give you a summary...
From the map are set to values from 2247 rpm at 70% climb up to the 4242rpm to 76%... instead, she gets 43% to 2247rpm salt and incremental 4242rpm comes to the 65% maximum (when it's cold, when it is hot instead of salt, and drops a mind of its own)... this is the value of duty cycle that I read in the group 011 log scope...
Instead, if I raise these values from the map, as I'll get them up to 70 to 80% and from 76% to 86%, at 2500rpm rises to 72% and makes me a peak of 2800mbar on actual intake press, and then rises and drops, i.e., drops to 60% and then it goes back to 70%, drops to 50 and back to 70, and the machine goes back to sobbing...

[valerio85]

you are sure that the turbine has been settled well? I suggest two tests to understand more:
1 try another and see if it goes better
Trial 2 your on another car and see how it goes
from these two tests, you understand everything
where are you from that city?

[ciullo.eugenio]

ehehehehehe xD watch it... if I had another turbine, I would not have hesitated xD
also had another car xD
are of vibo valentia

[Errecinque]

If the same thing you are doing with the original map, the problem is mechanical. Theoretically, you have a problem with the palette of the geometry is seen that changes from cold to warm. First of all provrerei to check that.

[ciullo.eugenio]

as soon as I log in the sound and I will have you feel... according to me, I have trimmed a turbine with manifolds and slotted, they come to temperature and bleed... then you registry so you understand better...

listen, a kindness,
I have quite a few errors in the engine control unit
one is 18062 (That would be the sensor of the oil that is aftermarket and does not recognize him do not know for what the hell reason)
one is 19561 (that would be the n239)
and one is 17849 (that would be the n75)
Is there anyone who would be so kind as to excluding me these 3 errors from the file ecu original? or if you could explain to me how do you delete the errors, I would help you to understand how it works...