Fuel Guage Showing Empty With Known Half Tank?

[SS8_Gohan]

hey everyone,

well had something really weird happen on me today driving to work, fuel guage went from half to empty.... in 1 km! a wicked fuel economy of 3000ltr / 100km's, yeah!!

i wasn't leaving a trail of flamming fuel behind me and the car was still running fine despite being dead on empty with low fuel light on so i know i've still got fuel but was wondering what could be the cause of the guage thinking there is no fuel left?

cheers,

daniel

[choyda]

Hi,

I had this issue and I believe there is a thread regarding this. Restarting the car fixes the issue or driving on empty for a while. No errors appear on the Consult for this either (from what I have seen anyway).

Let me know if you figure it out please.

[Craved]

check the fitting on the tank .. there are 2 plugs . one for fuel pump with 2 wires... one with 3 wires for the fuel level sender ..

could be earthing out somewhere on the signal wire which would make it show as empty

[SS8_Gohan]

ok, i'm a bit of newb...

where am i finding all of this?

[gazza750]

in your boot

[SS8_Gohan]

so pull up the carpet and all that... and then where exactly will i find it, drivers side, passenger side... right in the middle? i have changed my rims recently and took the spare out to get the tools, maybe i knocked something?

[SKYBEE]

could be the float on the sender has fallen off in the tank possibly

[SS8_Gohan]

^ that doesn't sound like something easily accessible

[Craved]

not having an R34 its hard for me to say .. they usually have wiring going into a plate with 4 bolts that is the cover ..

undo that and you will see the fuel lines and the 2 plugs

[exv8driver]

Sounds like the floats fallen off.. but I'd check the wiring first (easiest option).

[choyda]

Sounds like the floats fallen off.. but I'd check the wiring first (easiest option).

Inside the boot, remove the carpet panel thats up against your seats. You should then see and ECU looking thing (I think its the HICAS controller or something like that). Theres a lid with bolts all around it on the shelf type thing. Thats how you access the fuel pump. It might be near that. I'll check the service manual tonight and confirm.

[SS8_Gohan]

I think its the HICAS controller or something like that

good, i'll rip that out...stupid car walking sideways on the roads

cool, cheers for that mate. When i get the chance i'll check the boot out - for a little bit last night the fuel guage raised a bit, when i pulled over to drop a friend home, then proceeded to drop again when i started driving, back to empty.