How you would calculate engine oil pressure of an engine? I've noticed on my car I just got, it uses a pressure switch in the oil system to measure engine oil pressure it seems in my case the switch has a threshold of 6psi to turn the pressure switch on. The dash will actually display a psi value that does change with engine speed,etc for oil pressure.
I am assuming the ecu is using a algorithm to determine the oil pressure I see on my display. This is interesting to me where exactly would you start to create a algorithm to determine engine oil pressure.