fuel tank sender resistance for P2
Posted: Wed Jun 18, 2025 2:37 pm
Does anyone know the resistance value of the fuel sender on the P2?
I measured the value for full, it is between 50 and 60 Ohm, for empty it should be considerably higher.
I want to measure the capacity to dampen the fuel gauge. The pointer oscillates a lot when the tank is empty.
My tank is full and the indicator is at maximum. Here the highest current flows at around 50-60 ohms, approx. 200 mA (at 12 V).
When the tank is empty, the pointer goes back towards zero. Then the current must decrease and the resistance must increase. This is Ohm's law.
So the resistance of the tank sensor must be greater at the bottom (empty) than at the top (full). I am looking for this value for the bottom...
I measured the value for full, it is between 50 and 60 Ohm, for empty it should be considerably higher.
I want to measure the capacity to dampen the fuel gauge. The pointer oscillates a lot when the tank is empty.
My tank is full and the indicator is at maximum. Here the highest current flows at around 50-60 ohms, approx. 200 mA (at 12 V).
When the tank is empty, the pointer goes back towards zero. Then the current must decrease and the resistance must increase. This is Ohm's law.
So the resistance of the tank sensor must be greater at the bottom (empty) than at the top (full). I am looking for this value for the bottom...