HI Guys
some advice needed, car is a 84 323i chromie. I have a 55Liter fuel tank fitted and a 55liter guage in the cluster.
I know the capacity of the tank as I went from empty to full and confirmed the amount that went in.
The problem is this , I swapped out what I thought was a faulty sender unit for a brand new VDO unit .
both units when empty are 65 ohms, however when full I am getting 4ohm on the one unit and 6ohm on the other. Also the fuel gauge never goes up to full, it goes to 3/4 .
when I bridge the wires it jumps to full , this tells me the wiring is correct.
What else can I do to get a more accurate reading .
