I recently installed an egt-k sensor with amplifier and connected it to utcomp. No matter what I do, utcomp reads 0C and occasionally blink up with 1degree - but very seldom.
I have mounted the sensor itself in the exhaust manifold. The amplifier is located near my fuses on top of the battery, just a short meter from the sensor. I have the rest of the cable coiled near the battery. From the amplifier, it is about 4m of 1mm2 cable too utcomp.
I have played around with the ground connections: Grounding the 12v input only, 12v input and 5v output, and 12v input and egt-k sensor minus, but the reading stays steady at 0.
I´ve measured roughly 7mV on the 5v output, no matter if the car is running or the car is cold.
Any suggestions to what might be the next step in fault-finding it?
Thanks a lot,