370z TT - 17psi boost randomly pulling TPS voltage? (pics)

[braydo25]

Hey guys, working with tuner on this so I'm sure it'll get quickly resolved. But for my own curiosity's sake I'm wondering what's going on here. We're doing street tuning on my built TT 370z, we're up to about 17psi of boost and everything is looking solid aside from some weird TPS voltage dips (Very similar to what TC does to pull power) even though traction control is off?

Have any of the built TT guys seen this? Do you need to disable more of the TC system than just hit the "Off" button in the cabin for higher power levels? Or is this indicative of something else. When this happens we aren't seeing any ignition correction or knock whatsoever, so it seems to be something the ECU is intentionally doing?

Pull log: https://datazap.me/u/braydo25/log-1531287375?log=1