ProLink / VCM Boost Scalling for Innovate SCG1 4 Bar

Hello All, I am trying to scale an external MAP sensor from an innovate SCG1 so I can log boost as well as AFR with my Prolink. The scale that the Innovate 4 Bar sensor has is -14.5 PSI = 0.5v --> 43 PSI = 4.5v. I tried adjusting the AEM 4 bar default that's in VCM Scanner, but it's not reading correctly, but is reading and reacting properly, just off a few PSI and the error increases exponentially, at 4 PSI it's off 1-2, at 6 PSI it's off 3-4, etc... Anyone know how to transform the scaling that Innovate provided to the proper equation for the Prolink.

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