Fuel Gauge Wiring

Chris,

Check out the wiring diagram in the members area.

Basically, one goes to the sender and the other to the regulator. (12v). Which wire is which is a matter of testing with a voltage applied. Ideally use the sender in the circuit as a potentiometer to see the deflection of the needle. A correct needle movement will indicate which wire is which as per the wiring diagram.

Alistair

Hi Chris,

1. Check the earth to the gauge, it is used for the panel lights and the function of the gauge.

2. Check live feed to the back of gauge, earth the other terminal and the gauge should deflect.

3. If gauge is working, remove wire from tank sender and earth, if needle deflects sender is faulty.

4. If the sender is faulty it will need to be replaced in most cases. You can sometimes repair if it is just a wire off inside, they are very delicate in the coil area and repairs are tricky.

Good luck Philippe

If you have a multimeter check resistances between Terminals B and T – (60 ohms); then between T and the case (100 ohms). This will tell you if the coils are broken. Check that the needle can be moved by hand (gently). That will tell you if the needle is jammed.

If that is all good, it should work.

Roger

Seeing these pictures, for “B terminal” read “Yellow Wire” and for “T terminal” read “Green wire” . i.e yellow to green 60 ohms, Green to case 100 ohms.

Roger