the needle on the dash board is hovering above mid all the time and i cant tell how much gas i have in the tank...

i need to fix the sender, but i have three wires and i dont know what they do, theses are the wires

Brown (most of the time brown means ground)

Light Blue

Yellow (most of the time yellow mean ignition 12v)

if i leave all the cables in the air (no connection) the fuel gauge in the panel shows silghtly above mid (engine off)

if i bridge the yellow and the brown i get a full tank reading in the fuel gauge

only other two posible combinations is yellos blue and blue brown, both give me same reading as all the cables not conected meaning blue whire might be damaged

also tryed combinations with an ground sorce (from chasis) and i dont remember wich combination gave me a full depleted reading but i remember getting it the first time i tryed it

if i know the wire funtion and the resistance value i can check to see if the sender is the problem, or the gauge, or maybe the wiring

From Felicia Haynes manual (which does not cover carb model)

Fuel gauge sender at instrument panel has a yellow wire labelled 10c/1 which goes from fuel gauge to fuel sender, and a blue wire from the fuel sender leads to a brown wire and is the earth connection. The pump's wires are brown and red/yellow with brown as the earth and red/green the output from the fuel pump relay.

Edited 6 December, 200817 yr by anewman

From Felicia Haynes manual (which does not cover carb model)

Fuel gauge sender at instrument panel has a yellow wire labelled 10c/1 which goes from fuel gauge to fuel sender, and a blue wire from the fuel sender leads to a brown wire and is the earth connection. The pump's wires are brown and red/yellow with brown as the earth and red/green the output from the fuel pump relay.

mmm. mine is the GLX (carburator) wich is the same engine as the favorit, maybe the favorit manual has something that resembles what i have...

Oh actually that's a good point. Above is from a Felicia manual...

There was a Favorit carb model in the UK.

From Favorit manual for carb model... On Favorit carb model the fuel sender has 4 wires. A blue wire and a yellow wire go to the fuel gauge, and a black wire goes to the level warning light. A green wire goes to earth. (It's exactly the same on the injection favorit model).

Don't know if that's any help as neither correspond exactly with what wires you have.

there has to be a flow to give me a reading of 1/2 tank, so its either the blue wire is in short or the dashboard has a short, so i'm triking the fuel sender out of the pic (well is not o.k., but is not the reason either) i checked all the fuses and i guess i'm gonna be using a tester to check out the wires and the sender unit to get a better picture

Edited 8 December, 200817 yr by Cepheuz

Oh actually that's a good point. Above is from a Felicia manual...

There was a Favorit carb model in the UK.

From Favorit manual for carb model... On Favorit carb model the fuel sender has 4 wires. A blue wire and a yellow wire go to the fuel gauge, and a black wire goes to the level warning light. A green wire goes to earth. (It's exactly the same on the injection favorit model).

Don't know if that's any help as neither correspond exactly with what wires you have.

The Felicia Carburetor uses the same sender as the Favorit (i did some research) and the blue and yellow wires are exactly the same, but i does not use the black wire for the level warning, and the green wire is substitute for the green for earth.

i have to buy a new sender since the one i have the yellow connector is grounded and the mechanic here wire it incorrectly to overcome this (he put the brown wire in the black terminal) ad the sender itself has been worked on so better new, i alredy replaced the instrument panel with a used one

just posting to let everyone now that its fixed;

changed the fuel sender, it had a shorted contact, previous mechanic switch it the negative lead to the reserve sensor and that's the reason why it was so erratic and always going to the middle no matter how much i filled the car

the wires are Blue = below middle | yellow = above middle | brown earth strap

fuel gauge works with two resistors measuring the current by the negative amount, if they short to positive they blow, in that word, never connect any of the wires to a positive feed, and never connect them directly to negative without a resistor, that's how my fuel panel was damage..

fuel sender is exactly the same as the favorit, except it does not use the reserve or empty strap (the gauge does it) so the black strap is never used (but available for backward compatibility i guess)

hope this helps anyone in the future with this predicament