Weird trouble code spn 168 fmi 13

[Carhauler]

Still showing this code active. I have gone through most of the harness and cleaned all grounds and connections. I’m kind of wondering if this is the turbo actuator throwing this code. The code shows the SA as 128 on the can buss. I’ve also been having the actuator throw codes for abnormal uprate. But they never stay active. Just has Over 100 counts.
Vgt position does bounce around, responds very lethargic to commanded and coming down to a idle does “cough” at times. Calibration and test in insite always passes though.