fuel gauge PLEASE HELP!!!

[e30power7931]

yeah we have done all these test but nothing has worked....im thinkin just say f it and give up lol

[Jean]

yeah we have done all these test but nothing has worked....im thinkin just say f it and give up lol

What do you mean nothing worked...what were the results? Depending on the results you can deduct what the problem may be.

[thereisnoyun]

did you replace both sending unit? the one next to the pump and the one on the other side?

[e30power7931]

i have only one sender. Everytime i replaced gauges or sending units when i would be on emtpy my fuel gauge would be reading half a tank. each thing ive tried has had the same results

[Jean]

Then you might have a wrong cluster or coding plug in your car. I would check with another member who has the same model/year car as you that...

[e30power7931]

ok thanks guys

[Slick92GS-R]

i have this same problem ....i fill the tank (13+gallons)..needle shows full, my odo/trip doesn't work, so i don't know how many miles driven but when needle gets to half.. fuel light comes on.. i've figured the light is correct & the gauge is wrong ..

1. while at an HPDE w fuel light was on, i got bad hesitation on a long right hander. (late in the day after 3 sessions)
2. i was at an auto cross fuel light on.. hesitation on quick right left combo (last run of the day)
3. i ran the fuck out of gas one day, light blazing, half tank showing

i have 87 325e that i've swapped in a 325is cluster.. my old original cluster has Si batteries woes..