On my UTCOMP Pro I plugged your 3-wire oil pressure sensor and I plugged it in and set as shown on your forum, viewtopic.php?f=28&t=265
I using a DS (B12 = + 5V and B10 = GND) output and the signal on B2 PIN.
in the configuration panel of the UTCOMP pro I indicated on B2 = "Oil Pressure sensor",
In the Advanced tab I indicated sensor values a = 2.59 and b = -1.29
it indicates well a pressure it's qood, but I tried several settings of the DS output in question but the indicated pressure remains fixed and does not vary according to the engine speed!