Jump to content
SAU Community

Problems With Fuel Gauge

johnr
 Share

Recommended Posts

johnr Enthusiast

johnr

Posted
Posted

Hi,

Has anyone had problems with their fuel gauge/fuel tank? My fuel gauge was working fine but recently it varies wildly from 3/4 full to full. Also I cannot fill the tank more than about 3/4 full and there seems to be an air lock or something - even after shaking the car during filling, I can't fill the tank. Any clues?

Link to comment
https://www.sau.com.au/forums/topic/218733-problems-with-fuel-gauge/
Share on other sites
johnr Enthusiast

johnr

Posted
  • Author
Posted
Is it a mere faulty in-tank gauge signal reading or do you actually can only put less litres of petrol in your tank when refilling?

Both; I can't completely fill the tank and the fuel gauge moves from full to 3/4 full

NISMO Grand Master

NISMO

Posted
Posted
Both; I can't completely fill the tank and the fuel gauge moves from full to 3/4 full

hey John,

Go as close to empty as possible and then fill up and see how many litres go in.

It does sound like a faulty guage, and i know that the fuel gauges/sensors in our cars and 350z are nothing short of crap.

I've filled up to the point where it just about overflows out, and the guage shows half a quarter to go. I can also be at half tank and within 5k's it shows close to a quarter left :P

johnr Enthusiast

johnr

Posted
  • Author
Posted
LOL - i thought nissan should have fixed them (fuel gauge sensor) 10 years after the R33....

I think my gauge is stuffed as well I have some sort of air lock in the tank as the maximum I can put in is about 55 litres. Any clues on how to fix it???

  • 1 year later...
johnr Enthusiast

johnr

Posted
  • Author
Posted
I think my gauge is stuffed as well I have some sort of air lock in the tank as the maximum I can put in is about 55 litres. Any clues on how to fix it???

I fixed the fuel gauge problem and it was easy. All you have to do is clean the sliding connections on the 2 fuel floats.

Take out the rear seat, expose the both openings to the 2 floats, withdraw the left float but just lift the right to expose the contacts and get a cotton bud to clean the sliding connections on both the floats. They don't seem dirty when you first see them but when you run the cotton bud over them you get a black oxide on the bud which is affecting the fuel gauge reading. Only takes about half hour.

n15m0 Grand Master

n15m0

Posted
Posted
I fixed the fuel gauge problem and it was easy. All you have to do is clean the sliding connections on the 2 fuel floats.

Take out the rear seat, expose the both openings to the 2 floats, withdraw the left float but just lift the right to expose the contacts and get a cotton bud to clean the sliding connections on both the floats. They don't seem dirty when you first see them but when you run the cotton bud over them you get a black oxide on the bud which is affecting the fuel gauge reading. Only takes about half hour.

Pics would be good.

  • Thanks 1
johnr Enthusiast

johnr

Posted
  • Author
Posted
Hi Mate,

I've also had this problem where I can only fill up to about 3/4 full. I can only ever fill up around 40L max.

Also petrol gauge is all over the shop. Decides to move whenever she pleases.

That is exactly what mine was doing and now it seems to be stable and accurate. When I cleaned the connections today I noticed that the tank was half full of fuel when the gauge indicated that it was nearly empty. I have only taken it for a short drive and it seems accurate now and doesn't go all over the place; I will have to wait and see if it is permanent but the US forums seem to think that this is a good fix.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • GTSBoy
      R32GTR R200 reverting from Nismo centre to stock

      By GTSBoy · Posted

      I like it when the counter chick leads you out the back into the racks and says "have a grub around in here and see if you can find what you need. I'll be back in a few minutes. Just left me in front of a massive motorised shelving system and 2-3 million fasteners, so I could find a peculiar SS shoulder bolt with cap head. Gotta love country towns.
    • Piggaz
      R32GTR R200 reverting from Nismo centre to stock

      By Piggaz · Posted

      I used this https://osgiken.com.au/product/os-giken-os-250r-lsd-gear-oil-80w250-1-litre/   shut my nismo 1.5 pro up by heaps…. Not silent though. Gives the car character and personality. It ain’t a carolla. If you want silent, put a quaife in it.
    • MBS206
      R32GTR R200 reverting from Nismo centre to stock

      By MBS206 · Posted

      It's about the same time for me from Bunnings, or the Fasteners. My big push away from takeaway food, and gluten in general keeps me away from the Bunnings Snags too! Weather up here, I've been out for two walks today in the beautiful sunshine. Had a few little drizzles, and some wind, that honestly, a tin of beans and I could compete on how harsh she blows Thankfully, being this bit inland, we're not getting anything much really. Will probably pick up a bit more when/if Cyclone Alfie decides to come ashore. A few areas in the GC though, and south into NSW are really getting smashed though! Right now, I'm just annoyed Alfie hasn't hit, as I'm not allowed to crack into the BBQ foods like the bacon and eggs until the Cyclone hits "In case we lose power"...
    • The Bogan
      R32GTR R200 reverting from Nismo centre to stock

      By The Bogan · Posted

      I love fastener joints, the price difference between them and joints like Bunnings or Super Cheap is amazing, and they either have exactly what you want, or they can get it to quick They have even given me some for free when I only needed a couple of specific size In saying this, I have paid premium for fasteners from Bunnings if they have the sizes I need, but only for convenience really, as my local is only 10 minutes away, the Sushi joint near them is also a consideration  How's the weather Matt? Stay safe mate
    • joshuaho96
      R32 update from 1990's spec.

      By joshuaho96 · Posted

      Wideband is worth setting up if only for tuning purposes. I would not mess with the ignition system unless there's a misfire. HKS crank trigger is popular out here for the relatively easily sourced Denso crank sensor, not a bad idea to install as well regardless of power level on a standalone. Boost leak test is worth thinking about. Oil pressure sensor tied to a fuel cut isn't a bad idea either. Getting the tune figured out is a good idea. Without putting eyes on it and getting under it there's no way for us to tell you exactly what it needs but most likely you're down to the last 10% that will make a big, big difference in how happy you are with the car.
×
×
  • Create New...