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.

 

[Alfa33boxer81]

Hi I ended up putting another (used original) throttle body in it and it made the things way better but not perfect, in fact in my case is the opposite of yours, cold start is perfect but once up to temperature than the idle becomes a bit rough

 

[asteriscus]