My Caravelle 2004 1.9TDI, there is 3/4 of fuel in the tank but the gauge needle reading on low below the red line and jerk everywhere when I over the bumps plus the low fuel warning light is stay on all the time. I took out the sender unit, the reading of Ohms when the level is on full is 50.3 half is 199.1 but the low level on the floor is reading nothing like -1 . on multimeter. Is this tell me the sender are fault?
Thanks