No boost......no power

[Rawze]

Perhaps take a nice clear photo, top-down view, and post it here for both positions.

does it hang up/ have any hard-spots through its travel range?

Also, I hope you are aware that 40+ and higher lbs of boost can crack a piston or the head in a hurry on that CM871. Very dangerous letting it get that high.

-- As far as the ecm goes, the CM871 ecm is known for going bad, becoming intermittent, and engine not starting. When this happens and it is in this intermittent condition, the electric fuel pump will also not operate.

As far as it making the turbo do wierd things, that would not likely be an ecm issue itself.