help with How to make the math parameter of MAP/ BARO (pressure Ration) E92

[doseri]

Hi all

i was trying to create (MAP/BARO (pressure Ration) in math parameter for tuning the virtual volumetric efficiency table on my Tahoe 2016 (E92 PCM ), but the data-loge is way-off in the scale graph,I use the Manifold Absolute Pressure - Hi-Res" & Baro parameter. ,and i also try the under the math

please can i get a guide on how to make the math parameter for (MAP/BARO (pressure Ration) ,and clarifying to me the channels, and math equation and the steps needed to get an accurate reading for the virtual volumetric efficiency for the table for that type of engines


waiting you suport

regards
sami

[littlefield]

Not sure about the programming part but the pressures must be absolute, i.e. atmospheric is not 0 it’s 14.7 psia, 30 mm Hg, 100 kPa.

[Ghostnotes]

+1

SUB'd