I'm trying to get a 5v gm 3 bar input to show psi using a transfer function since my os is only 2.5 bar capable (e40). I have ran a separate wire to the pro input 3 and can see the voltage but when I try to apply a transform to it I can't select the mpvi pro input.
Maybe I'm just doing it wrong but I need a little guidance on external inputs and transforms. I think I understand what needs to happen with the transform fomula but how do I make it transform the voltage from input 3 to psi? The closest paramater I can select in custom is 2 bar map and not the voltage from the input I'm feeding to the unit. To me I think I should be able to select that input and transform the voltage to psi. No?
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