For anyone still waiting for the solution. Here it is, the pump wires, the ones that go from the pump to the top mount, were in the opposite way so the pump was pulling instead of pushing, so my bad.
I did, but I'm starting another thread (again) because when you pay little you usually don't buy it in a "great" condition, so, this time, is the Aquiles of Fiat's. Rear brakes, if you can, help me out on this one gonna, need the car done till next week so any help is greatly appreciated.