Alfa 147 150 hp

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Originally Written by MCDJ90

I'll tell you, I honscollegato yesterday afternoon, and I've used the drive, I noted the failure, but does not go into recovery, and I have almost the impression that it goes better, now I use relax this morning, then before or after lunch, the associate myself, and see if the well-known differences, in order to understand if I have to replace it, and what deco to buy more!
For the geometry in part, you may be right in part, no! The turbine was rebuilt 12k Miles ago and adjusted the bench, (according to those who made it), but mounted so the drive to the low reggimi was not to be for nothing, so with the mechanic, we advance the hand one-half turn on the adjustment screw and now it's better!
However, he has always had peaks of 2,7/2,8 in diagnosis, even before you adjust it.
Yesterday with mass air flow sensor disconnected I did a bit of testing, and in all has been around 2,65, from what I understand I should astare not much on the 2.5 as the peak, and now maybe this oiccola difference is docuta to the adjustment that we have moved.
But according to you the mass air flow sensor as well as distort the reading air mass, it can also cause these pressure spikes? What do I know! Maybe not reading the mass air, does it feel more time in the closed geometry? I'm going away for a rule, unfortunately I have a lot to learn.
Greetings.

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but before you change the turbo you had these problems?

Quote:

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Originally Written by MCDJ90

I'll tell you, I honscollegato yesterday afternoon, and I've used the drive, I noted the failure, but does not go into recovery, and I have almost the impression that it goes better, now I use relax this morning, then before or after lunch, the associate myself, and see if the well-known differences, in order to understand if I have to replace it, and what deco to buy more!
For the geometry in part, you may be right in part, no! The turbine was rebuilt 12k Miles ago and adjusted the bench, (according to those who made it), but mounted so the drive to the low reggimi was not to be for nothing, so with the mechanic, we advance the hand one-half turn on the adjustment screw and now it's better!
However, he has always had peaks of 2,7/2,8 in diagnosis, even before you adjust it.
Yesterday with mass air flow sensor disconnected I did a bit of testing, and in all has been around 2,65, from what I understand I should astare not much on the 2.5 as the peak, and now maybe this oiccola difference is docuta to the adjustment that we have moved.
But according to you the mass air flow sensor as well as distort the reading air mass, it can also cause these pressure spikes? What do I know! Maybe not reading the mass air, does it feel more time in the closed geometry? I'm going away for a rule, unfortunately I have a lot to learn.
Greetings.

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then, for the spikes you might have a problem with the pierburg, then with regards to the mass air flow sensor before changing it made a diagnosis with multiecuscan and you read the following parameters: air mass measured air mass, objective, turbo pressure measured and objective, the total quantity of diesel fuel (mm3) and rpm of the engine. Do a log pull in 3rd gear from 1500 to the limiter and then tell us the data so I can help you

*overbooster
Before regenerating the tjrbina the car had become dead under the 3000giri, it would take an eternity to take biri, and then get to those around and starting to blow! It was the sharp shooting! And then, it consumed oil.
Now the turbine is not leaking more oil, and to lower reggimi has taken place, always with a little tug around the 3000giri, but better than before!
For the peak pressure I don't know why I only began to equip myself a little bit!

*enrico
For the valve to some suspicion I have, I have to see when I can get help from the mechanic to dismantle and check the tubes if they are intact, I think they will not do it alone!
For the log of the mass air flow sensor, aspetteró well buy a new interface that is a little better than the elm wifi, but for the pull to the limiter, you mean up to 5000giri? I can stay quiet, or I do damage?

Quote:

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Originally Written by MCDJ90

*overbooster
Before regenerating the tjrbina the car had become dead under the 3000giri, it would take an eternity to take biri, and then get to those around and starting to blow! It was the sharp shooting! And then, it consumed oil.
Now the turbine is not leaking more oil, and to lower reggimi has taken place, always with a little tug around the 3000giri, but better than before!
For the peak pressure I don't know why I only began to equip myself a little bit!


*enrico
For the valve to some suspicion I have, I have to see when I can get help from the mechanic to dismantle and check the tubes if they are intact, I think they will not do it alone!
For the log of the mass air flow sensor, aspetteró well buy a new interface that is a little better than the elm wifi, but for the pull to the limiter, you mean up to 5000giri? I can stay quiet, or I do damage?

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here is the log requested. damn if I get spikes with the turbo!
so you tell me if they are close to death?! I hope not of course.

Quote:

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Originally Written by MCDJ90

here is the log requested. damn if I get spikes with the turbo!
so you tell me if they are close to death?! I hope not of course.

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What is known now turbine rigetenata is up to 1800/2000giri if I throw everything down, it takes a lot to climb, then from 2000 it pulls a lot, or, if I step on the accelerator gradually, the salt gradually up to 2800/3000 rpm and then by a tug (I've seen that corresponds with the opening of the geometry, is this normal draw?
For the wg, I will quote half a lap behind as he was returning from the review, and try again a little!
But the strange thing it is, for example, I disconnected again the devimetro, and I've done two tests always pulling 3* from 1500 to 4000giri about (I was disappointed to go down to the limiter) and two times the peak was within 2.5.
At the mass air flow sensor attached, I pull those peaks? Because actually enter the air? Or because they measure less and then pump ofmore turbo?
Sorry for the many guesses.
For the setting, eh I don't have the equipment unfortunately! But it is interesting! I will try to study and maybe experiment on a turbine that has my mechanic, I love to learn.

Shortly I am attaching also the other two files, so tell me what you think.

now, however, I don't remember if even without the mass air flow sensor, I had a peak at 2.7 do I have to check the previous log.
notwithstanding that riposizionerò the rod of the geometry as a revision.

Shortening the rod (increases) pressure
by lengthening the rod (decrease) pressure

Guys it is a clarification! Given that I noticed this kind of vacuum, accelerating gradually up to 3000giri and for this reason increased a around the shaft of the geometry (and then adding pressure, even if, in reality, the peaks were always those), I have a doubt! It is not that the geometry is too closed? Thus in addition to return in the position of oartenza, I have to try to decrease still? It almost seems as the face is the stopper, and then with the opening of the geometry to 3000 rpm vent and that extra push! Instead of being linear!
Do you believe this is possible?