Doubt Egr Audi A6 3.0tdi euro5 year 2009

[danny677]

Yesterday ? came from a colleague who has a workshop that brings work and clients, and he asked me closing the Egr ( to not clog up the swirl and lock ) and + sensitivity? throttle while wanting to maintain the Dpf. To me the thing ? played strange why? usually I associate closing the egr to the elimination of the dpf in order not to have problems with clogging and/or lack of regenerations.
Since? I do not want him to do damage, I would ask for your opinion on this what if ? secure or not, then will see? then to do that.
thanks

[danny677]

wow, 18 visits no answer

[legendaryslave]

Do not wipe it off with dpf active explain the issue to them could create a blockage pi? fast filter

[Alfa159 q4]

I do not see anything unsafe, closing the egr and map the pedal while keeping the dpf does not involve any problem.
I often have a mapped drive, with egr off, and dpf is still present, and I have not had any kind of problem.

[danny677]

oh guys thanks,
if the filter tends to get clogged + fast we can? stay just the regenerations and the doing, and not leave to walk.
Ragionandoci a moment, the egr throws smoke suction dirty the swirl and all ducts in general, but lowers it a tot, the combustion temperature ( in fact, when the place where the regenerations of the egr intervenes with the closure or partial closure in order to contribute to the raising of the temperature ).
Now I wonder, if the egr throws smoke, however, is not burned but simply recycled and excreted still + lousy than before, due to the lack of this element in the exhaust does not exit a deal? less soot ?
I dunno, maybe I'm missing out in a glass of water or I'm doing wrong, the cornerstone of the reasoning...

[alfajtd]

The egr regen) let it work, when not ? in a state of regeneration to keep it closed...

[danny677]

sorry alfajtd,
I for the egr account of the use of time ( such as in situations where I delete the egr and dpf )but in this case to do what you say I have to put his hand somewhere in 2d ? procedure?
thanks

[alfajtd]

If I'm not mistaken those sw close all, if that works properly...

In your case, keeping the dpf you have to bring back the original curves relating to the regeneration phase.
You do it in 2D.

[danny677]

ah then na simple thing simple

[legendaryslave]

however, the gas temperature of 600-700 degrees produced by the post-injection phase of regeneration do is to raise the temperature of the air sucked so much and it is true that in the psa is even abolished the intercoouler during the rirenerazione to suck hot air, that the system of poo