GM 3bar MPVI Pro External input PSI transform

[MP_]

I have been on struggle street trying to get V input from a GM 3bar to show PSI in VCM.

I can see the correct voltage but I can't get the transform right.
The reason for the external is e40 problems. I am using a 3bar map on an ECU that does not understand it so my map the ECU sees is just a reference vs a real number.

I would like to log the actual pressure during a pass in PSI. I don't want to overwrite the map, I want to add a new channel.

Tried adding it and doing a transform of (v/8.82)+ -14.7 and it does not work. Screenshot attached.

Any help would be great.

Screen shot attached. 3bar transform.png

[TransGo Robert]

Create a math channel with this formula: ([30001.10]-.5)*125