Fuel tank sending unit
Plot both on a graph and you will see that when the aftermarket is about 35 to 40 ohms the oem unit is 20 to 30.
Product Review: A100 Fuel Sender For 67 Dart
If you clamp both to a vertical board and raise the float arm the same height and measure the resistance of each. Do this in 1 inch increments.
Plot both on a graph and you will see that when the aftermarket is about 35 to 40 ohms the oem unit is 20 to 30.
Product Review: A100 Fuel Sender For 67 Dart