Here's a circuit which will convert an input of 0-2900 Ohms to an equivalent of 0-190 Ohms to suit a conventional analogue gauge.
View attachment 262811
Attached is my LTspice simulation file.

Hi, any change to this circuit if sender works from 500 to 1000 instead of 0-2900 (output remains 0-190)? Thanks

Mod: Link to old thread.
https://forum.allaboutcircuits.com/...make-gauge-read-correctly.185431/post-1723578

 

Welcome to AAC!
My original circuit was designed for senders with a near-zero Ohm minimum resistance. Off-hand I can't think of a simple modification to cover a 500 Ohm minimum while still preserving a reasonably linear response over the whole resistance range, but I'll look into it when I have time.

 

Presumably this is a fuel tank sender and a hot wire/bimetal gauge which would normally be connected in series with the sender. I’d use an ATtiny85 processor (powered by 5V by linear regulator) to read the voltage at the sender wiper when 5V is across it and convert this to a PWM output driving a transistor to vary the (average) voltage across the gauge. Typically these gauges are horribly non linear, so if you want better accuracy you could calibrate and use a lookup table. Use an additional ADC pin with a potential divider to correct the output according to the measured battery voltage.

 

Is your gauge a modern electronic one, or an old-school cross-field analogue one?

Edit:
Ready made Ohms converters are available, such as this.