Analog MAP math parameters?

Im using MPVI2 with Pro features with the latest 4.6.3 scanner. I have wired in my MAP via the blue analog input. I believe its a 3 Bar sensor, its from my meth injection. Im using math parameters to initially try and log this sensor(seen in first Pic). I'm surprised it actually seems close, but i feel there has to be more to this sensor to be accurate. The second pic is the MAP sensor settings from my meth kit for this sensor. is there a equation or feature to use a map sensor via analog signal? Attachment 99742Attachment 99743

what map sensor do you have and did you figure this out?