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Fuel Gauge Madness

DR R33

By DR R33,
in General Maintenance

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  • 8 months later...
llama_au Grand Master

llama_au

Posted
Posted

Just bumping this thread as my R34 seems to be doing this. I'll drive along and literally watch the gauge drop to empty and the fuel light come on. Then I'll stop for a while and it'll go back to where it should be. It'll just randomly drop and climb. It seems to reset itself to the right point when you turn the car off and on. What could be causing that?

llama_au Grand Master

llama_au

Posted
Posted
Sounds like a wiring issue, from tank to gauge. Or maybe some contaminants on the resistance slider?

Had any work done near the tank? Pump etc?

Had any wiring done, stereo?

The only thing I've changed in the past week is the battery. The car has a voltage stabiliser that the previous owner added, could a dodgy earth be causing it? It does sound like wiring to me. It does have a stereo (which is useless in Australia and I'm not using), I don't think there's been any work around the fuel tank. I've only had the car a week (imported and went through compliance.)

GeeTR Grand Master

GeeTR

Posted
Posted (edited)

Did they change the filler neck and dropped something in there while doing it?? Did they drill child restraints into the parcel shelf? clip a wire?

Try and find out whats been done to your car recently.

Edited by GeeTR
Paul SM Collaborator

Paul SM

Posted
Posted
my fuel gauge has been acting werid lately its been going up and down and never seems to be stable.when i press on to accerlarate the fuel gauge drops then when im stopped in traffic it slowly comes back up. does anyone know what it could be?

You may find that the fuel guage float has parted company with its mounting. This happened in my R33 GTS-t and was easily fixed.

llama_au Grand Master

llama_au

Posted
Posted
Did they change the filler neck and dropped something in there while doing it?? Did they drill child restraints into the parcel shelf? clip a wire?

Try and find out whats been done to your car recently.

They don't put a restrictor in the fuel tank any more. They mounted child restraints but that wouldn't have done anything.

Paul SM - yeah, you're probably right. Today it was fine, just has it's moment. When I cbf I'll get it fixed.

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