Gas gauge problems
This chart is from my aftermarket sender vs my NOS sender.
yours should have similar readings at a particular gallons in the tank.
you can see on the chart that the NOS mopar sender is not linear but the aftermarket on is.
Non linear matches OE gauge Linear gives bad readings on OE gauge
First do as others have said and measure the resistance that the sender is providing to ground.
This chart is from my aftermarket sender vs my NOS sender.
yours should have similar readings at a particular gallons in the tank.
you can see on the chart that the NOS mopar sender is not linear but the aftermarket on is.
Non linear matches OE gauge Linear gives bad readings on OE gauge
