Technical Bad idle and sputtering only at idle after installing a new Magneti Marelli throttle body!!

[asteriscus]

Hi,
I did replace the throttle body with a used but original one and it did make things better but didn't resolve completely the problem at idle. It is way better and the car no more tends to stall but still at idle it trembles a little

Hi
Did you find what was the problem? Mine Stall when cold, gets good when warming, But allways rough idle.