Misfire and boost issue

[Jkiller301]

So I am starting to Lose hope in getting my vehicle back running. At this point y’all are my last hope.

I have had an issue with roaming misfire (cylinder 1-3) for over 6 months now. When I accelerate I lose all power and it triggers a flashing check engine light. I don’t recall exactly what codes are triggered but it’s all for the misfires.

I have been told by ford it was the Coils, plugs, injectors, and catalytic converters I have since replaced all these items.
I was told by 3 shops that it was something in the ECM, ford says it’s not a computer issue.
(EDIT I also have been getting codes for both over boost and under boost.

The issue persist and my Ford is insistent that if I just let them replace those parts again with all FORD parts the issue will go away. (I didn’t not use all for parts x but still reputable manufacturers)

Has anyone ran into this issue or have any experience with this issue. Any and all help would be greatly appreciated before I just brick this thing and go on with my life.?????

 

[Rick]

There has been discussion about brand new non-Ford O2 sensors causing codes to be thrown.

 

[Jkiller301]

There has been discussion about brand new non-Ford O2 sensors causing codes to be thrown.

I would agree, but I had this issue when I had the OEM cats and O2 sensors. So I’m unsure if relaxing them with non ford parts would really cause that?