can be various things.. make a log short and simple. third gear, from 1k to 4k rpm the pedal all down. put in pressure-demand and goal, opening the valve an overboost, and the amount of diesel fuel. if you think you'll always have too much pressure you have to try to adjust it and then redo log, etc..
this is the log always done with elm, unfortunately.
test acceleration of 3* from 1k to 4k rpm with the pedal all the way down.
what do you think?
Yesterday I went to my mechanic for a couple of services, and I took the opportunity to do a check since I always have a strange behavior, like a vacuum under the 3000giri, so I insisted on giardare the tubes of the air, those of the turbine nom we controlled for mancanzadi time, but we have seen one that is just below the egr valve, in practice, from what I understand there is a sort of box that also filter the air, we get a tube if I'm not mistaken port depression, and then from this box escomo other two tubes, one of these two enters in a valve and then it continues, all of this system gestise pre-curved valve soft off (another one of my problems was off with jolts), look at them we notice that one of these tubes (a piece of a few centimetres and that went from this box up to the top of the valve) was deformed and choked!
It was in the casino disassemble the
Box, and replace comfortably the piece of tubocino with a new one, but soon after turning it off
The engine is back lerfetto as perhaps has never been since I bought it!
Think a bit of a cabbage, and you will be viewed choked what combines!
I hope I can check more in the also those that implement the geometry, hoping to be a part of the genre too!
You with the pipes of the geometry have you ever had any problems?
here, pressure low is low pressure and not high, then nn is due to the limiter, but to a pipe split or the egr valve not sealed well when closed.....
I have no errors concerning low pressure or high, only that the machine does not push well up to 2800 rpm.
For the egr is flanged for a long time and excluded from the map, then I don't think that afiati from them.
I'll have to check the rest of the circuit to depression, if I am going to exclude the pump fi depression works, the box and the valve that actuates the butterfly softoff com related tubes are intact, and I serta, to check for safety the tube that goes from the pump to the box, and the one that continues from the box and goes to the control valve of the geometry.
If the tube that goes to the geometry sucks air it is normal for the machine there is the is the geometry is not completely pulled in . For the absence of dtc can also be a large tolerance on the part of Fiat or some prepare if it is mappedOriginally Written by MCDJ90
Then a control to those of the tubes, I'll have to do it, stayed at the dtc for now, the only thing that was abolished was the egr, everything else is original (I have the file read in the ecu, by me, and compared with those ori), I changed excluding valves swirl and as soon as possible I write.
For the rest, I'll see how it behaves.
Good evening, after a long day I have written the file in the ecu with the change of the valves, swirl off most egr off, and then I removed mass air flow sensor to make a proof given that the machine I was strange at low rpms, and at around 3000 rpm, it was a snap of power, so he felt very in 2' and 3' gear!
Now, the fact of the map swirl off, it will be that I disconnected the mass air flow sensor, but it seems to me that goes a little better and face less shooting sharp those turns.
However, from the diagnosis to me marks the failure on the air temperature and mass air flow sensor (disconnected), I read on the forum that is used to measure the mass of the air, but as it says in the diagnosis, it seems to measure the temperature! I could help figure out if the mass of the obtained making the calculations according to the temperature? Or something like that? Or the air mass sensor is another? The mass air flow sensor might push me to have that behaviour at 3000 rpm.
Sorry for the many questions.
A greeting
MCDJ90
if you do not do the maf off the map not you can unplug the mass air flow sensorI also believe that making it in your you can't disconnect completely because it reads the tair sucked
also it would become very complicated if you do not have the experience to make all the calculations to make the map properly informed. However, for me the problem of your car is all in the adjustment of the variable geometry
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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