I have a 2014 Ford Fusion SE 1.5l Turbo Ecoboost. I have changed both O2 sensors, the MAP sensor, all the turbo boost sensors, all the fuel injectors, and all the spark plugs and coil packs. The car has a vibration at idle and it is still slow to speed up from idle. I am tired of part-chasing. Can someone please give me some idea of what can be causing this in light of everything I have done so far???? I really need a solid lead to follow, Thanks.

 

What is required here is a thorough look at the data stream info. That requires a capable scan tool to obtain that info.

Because resulting problems can have several causes and without the data info for guidance, we wind up keep replacing parts until you either hit the cause , OR run out of $$$.