Resistive Fuel Sending Unit into MC43?

David Holcomb 6 years ago in Master modules / MC4x updated by Chris Litwin 6 years ago 1

Quick question on fuel senders.

The kind we have included with our fuel tank is in fact not a current out, but resistive fuel sender. That is, 1 terminal is connected to ground and 1 terminal is the signal wire with varying resistance based on fuel level.

Is there any way that the MC43 can read this?


We set ours up like the circuit below. I believe the Vin will have to be scaled according to R1 value you use.