Perfect now its working

Nop i have readinga from 176 celcius to 234 something... these are the numbers
55c 2.05v
60c 1.89v
65c 1.7v
70c 1.49v
75c 1.38v
80c 1.22v
85c 1.07v
90c 0.98v
95c 0.87v

For the water temp i only need the voltage from the utcomp and the temp read from car ecu???
I took some voltage readings from 55 to 95 degrees every 5 degrees... i putted on the ecxel but didnt worked.. what should i do with the excel cells that i have no values like 120-130-140 20-30-40 ??

Hello i have a 996 carrera and i want to "steal" signal from the oem sensors for water and oil temp.. Is there any possibility doing that to confuse the signal going to ecu and have a false reading???? Also as i can undertand the oem sensors are analog ntc sensors and i have to calibrate t...