I bought an aftermarket gauge, but the ohm readings are different.
if the aftermarket gauge reads
140 degrees = 459 ohms
185 degrees = 191 ohms
212 degrees = 119 ohms
and the sending unit from the engine reads
140 degrees = 70-90 ohms
212 degrees = 21-24 ohms
is it just as simple as soldering some resistors and if so, what resistors do i need to solder to the sense wire?