Discussion: EGR off 1.3mjet does it really work?

Hi guys I ask you a question that has me intrigued, this morning I made a EGR off on a fiat 500 1.3 mjet 75hp, file ok I write, in the diagnosis of the egr off a percentage of 3%.. so far everything is ok.. then, given that in this car, I removed the intake manifold and the egr valve to clean them, remove the velocity stack inside the manifold by putting a cap on and leave the tube that leads from the valve open, with surprise I noticed that the egr valve still works, in fact, the minimum is to pass the exhaust gas by accelerating closes.. now I wonder cm is at work, and in the diagnosis port, the valve is closed?? But the traditional method work??

Here are the files, EGR excluded perfectly,
I repeat, in the diagnosis EGR off a fixed percentage to 3%..
dismantling the pipe introduction to the manifold I noticed that at least opens as soon as you accelerate it closes

Guys I know how to exclude the EGR valve manually, or if I put the resistance can I exclude it, etc..
my question, and that the traditional method of the cio? to bring the value to B992 esa, it does not work, in the diagnosis and the door is closed but the EGR valve with the car at idle it works the same, is fed.. any of you ever checked out after the exclusion if the valve was actually excluded?? I will and with regret, I discovered that it works equally.. if today it happens to me some 1.3 mjet I want to do some other test