Thanks Gadget!!! Really helpful!

I´m not sure if the engine was properly warmed up, i let the engine run some minutes, but will try it again but sometimes, the engine stop and doesn´t allow me to mantain the idle.
About the oxigen sensor, it needs to be a HEGO? (heated sensor), or could be an EGO?
how about this one?

About the EGR, I bought a new one, so I will replace it. I will do your test anyway, but if you say that it could not be the main cause of my problem...
I´m trying to find a correct TPS to replace it too!