Shifting issue?

[yonson]

I don't really know how to title this, just wanting to see if anyone else has experienced this. I have seen this on 2 Supercharged DI auto vehicles now. One is a 5.3 Truck and the other is a C7.

What they are doing is while driving at say ETC Pedal position of 35% during a shift the TPS will increase a couple % causing the MAP to
increase as well (sometimes into boost but not always) causing a very noticeable surge. At first I thought this was an issue with the DD
but that was before I noticed the slight TPS/MAP increase during the shifts.

On a bone stock vehicle/calibration they did this as well, we just didn't feel/notice it until going back and looking for it.

[Higgs Boson]

Have you logged to see what system is controlling the ETC at that moment?

[yonson]

Yeah, it never moves from Torque.