i have a fuel gauge, just like any other car, but this one want to be funny,

wen i fill up from bottom, no matter the ammount i put, it goes to middle

when i run off the engine and tur it back on it displays a diferent ammount of fuel, as i ride, aparently with the revs of the engine the gauge goes back up to whatever, and then when i pass a puddle of water or is raining a lot it goes back up higher even

so i dont know how much gas i have, unless i calculate trips and how much i put in

that Harlequin fuel gauge.... Anyone know why this gauge is such a comediant ?

oh and by the way, the tank is ok, and i clean with contact cleaner and a rag the thing that measures how much gas there is on the tank (forgot the name) and it has a little solder point in it that makes contact, it was a little flat from all the use, so i re-solder it and now is nice and round, and i clean the contacts to that after i put it together and checked that it gave me full, 3/4, half, 1/4 and empty reading, it did it perfectly, so everything on the tank side is checked and fine...

Edited 12 November, 200817 yr by Cepheuz
added some more info

I honestly think the problem is either the gauge sender, which you may have "cooked" a bit with the soldering. Did you use a heatsink to protect the bits you weren't soldering from the heat?

Or the early symptoms of panel voltage controller failure. Are the temperature gauge and/or instrument panel lights playing silly beggars too?

I honestly think the problem is either the gauge sender, which you may have "cooked" a bit with the soldering. Did you use a heatsink to protect the bits you weren't soldering from the heat?

Or the early symptoms of panel voltage controller failure. Are the temperature gauge and/or instrument panel lights playing silly beggars too?

panel votage controller failure... mmm, sound interesting, as the fack that i can be fixed with the proper earth ground and the correct resistance series going from the batery to the panel right? alas i dont think, none of the other light are doing weird things, the rev counter is ok the temperature is ok but it does seem like a voltage regulation thing, the first thing im gona do is put a ballast resistor on the coil, and check the earth strap from the panel... if theres rust or mold i think that would be the problem, so please advise on this

and no, i dint burn anything while soldering, since it was the tip that rides while the float changes position (filling up, slow depleting) i dint touch the wires or anything that would suffer from heat

so now i ran out of gas

i noticed that i would be on almost mid then will stay there until the fuel level reached almost the 1/4 mark and after that it would only go down untill the top of the first red line on the indicator

now the fuel indicator hovers arround mid all the time, INCLUDING WHEN IS TOTALY EMPTY well mid and just slightly above mid, i guess no matter what i have to change the sender, but...

i have 3 wires, light blue, brown, and yellow, if a bride the yellow and the brown i would get a totaly full reading on the panels fuel gauge if i bridge yellow and light blue i would get a little over mid, and also if i bridge light blue and brown, but one i did have a combination that gave me full depleted, now that combination is gone, cant find it, did i short something :eek: oh, and there is also a ground strap on the sender, but is not used, i also tryed light blue, brown, and yellow directly to ground, but i forgot the reading they gave me (maybe the full depleted reading whas there)

please anyone that is electricaly saavy or has had to deal with the felicia fuel gauge answer, i dont want to run out of gas again a be stranded