Good evening, after having acquired a wealth of information on this forum I decided to put myself to work. As the title suggests I would like to start from the exclusion of the EGR valve, I found two good programs that do this automatically, but I would like to understand how and where to act, in general, to rule out the EGR valve.

My car:

Fiat Punto 188 Version Speed
the 1.3 Multijet 70CV
ECU Marelli 6JF.

For each step, I would like your help, since? college student I can't afford to break anything.

As the software I'm using ECM Titanium 1.61.

Thanks in advance.