Running rough, Dies, and No Power

[Rednels]

Hi all,
my 2005 Excursion is really running badly. When under load it will huckup and sputter and if I hold into it, after a few seconds it will die.

Also, when accelerating and then lifting off the throttle and breaking, it will die.

I have getting 2 error code relating to the EGR valve.

I took it apart yesterday and cleaned it really well with some break cleaner, but its still running the same.

Can the EGR be the cause of my symptoms? Im wondering if its a stuck turbo. I can hear the turbo spinning....


Thanks for any help.
Eddie