Can HPTuners do this? Nonlinear sending unit

[striker754]

I have the pro version of HP tuners but I just simply haven't messed with it in a great while. With the custom inputs, can HP Tuners recognize a nonlinear voltage curve or can IF statements be used to essentially break an exponential curve into 2 or more straight lines?

I'm wanting to log oil pressure and Autometer's sender is not linear. Before I construct a voltage divider to convert the resistance to voltage I would like to know if HP Tuners can handle nonlinear in some way.

[MNR-0]

Yes it can

You can log raw voltage (which can be as non-linear as you like) or you can setup a non-linear function table to map volts to oil pressure. This would become a custom PID in your application

[striker754]

Can you point me in the right direction on this? I'm not sure where to find this non linear stuff to map the volts -> oil pressure