i have a new VEMS round i am trying to calibrate the MAP sensor signal to instead of showing the ADC value to show boost PSI.
For the calibration i can set the calibration scale and offset, but i cannot put a negative offset value hence i cannot make it work as the map sensor start at Negative pressure. How do i make the display gauges to show the correct value ?
I have also played with the input calibration table, but i cannot make that work either again i cannot make zero PSI equal zero without a negative offset value.
It seems the scaling doesn´t allow negative values at all. So you are forced to use absolute pressure readings, is that a problem for you?