EGR valve - electronic Exclusion or closure physics?

[SanJoe]

Hello everyone, as the title suggests, I would like to ask you if it is close the EGR valve physically or exclude it by using the map. The differences between the two mode? there are, not there or they are mild?
Thanks in advance.

[dariuccio]

a closure is made well and includes all of the two modes.
that machine

[alxcrs]

Hello SanJoe, there is no absolute rule...
Some euro3 you allow the exclusion physics even without the act electronically, and without present no light egr on the instrument panel; the other (euro4) allow you to act physically accendendoti the light on the picture, but without recovery; the euro5 instead if you just physically can't go into recovery... This does not apply absolutely to all of the ecu, but in principle it works well.
For example, I've a Alfa 147 115hp that runs from 50000 km with the EGR plugged physically, and I ripped off all the EGR system from the exhaust manifold to the intake without any removal of the electronic and zero problems.
In my opinion the best method is to exclude it electronically and physically with beautiful caps to prevent the formation of unnecessary turbulence both in the exhaust manifold and the intake...
With regard to the feelings, depends on the way of thinking of the various ecu, on the euro3 between the exclusion only of the physical or electronic should not be any difference, but from the euro4 in then I think of you as the ecu is the calculation between the quantity of air that sees sucked in and the amount of exhaust gas that should recirculate...
If I say wrong correct me.

[SanJoe]

I have a fiat punto gt 1.3 multijet 70cv ... it should be euro 3. Best thing to do according to you?

[alxcrs]

As usual, the best solution is the exclusion is through the map and physically, because I believe that it is a euro4 and not euro3 (if I remember correctly, the first 1.3 are all euro4). If you do not want to intervene immediately electronically, you can also parzializzarla through the thickness to be interposed between the actuator and the EGR itself.

[thekid]

About 1.3 normally if there are problems you trafilo from the valve to the exclude only electronically.

[SanJoe]

Hi, in that sense trafilo from the valve?

[thekid]

In the sense that the valve is closed there? the passage of gas in the intake. As it normally should be. While it happens that with the time the deposits on the valve does not make the pi? close properly, and also the valve is closed, the remains of the dirt which does not allow the seal.

[Fede147]

thekid I think means that if the egr valve has a good seal between the exhaust and intake manifold, without putting the cap on, then excludes only via the map.

[SanJoe]

Perfect, I think that the escluder? in both ways