Jump to content
SAU Community

Fuel Gauge Busted

oweban

By oweban,
in General Maintenance

 Share

Recommended Posts

oweban Grand Master

oweban

Posted
Posted

In my S1 R33, the fuel gauge is currently reading full until I hit around 180km (less or more dependant on driving, more for highway, less for when I'm in a bad mood), and I don't really know how it works so that I can fix it. From what I've seen, the sender for it is a long kind of bar that goes in the tank, and as I'm replacing my fuel pump with a Bosch 040 next weekend, thought I might do this too.

The picture attached is how I kind of figure it works, the left is normal and the right is what I think may have happened, it's come loose at the top and is laying down against the side, so when the tank is full, the float is stuck at the top until the tank level gets down to there.

This happened after a skidpan day at Oran Park in May 2007 so almost 2 years ago now, I think it's finally time to fix it. :)

Anyone with any ideas, this would be greatly appreciated.

post-34005-1233084292_thumb.png

Link to comment
https://www.sau.com.au/forums/topic/254439-fuel-gauge-busted/
Share on other sites
rinmak Proficient

rinmak

Posted
Posted

This is what they look like (in s13 anyway):

fuelpump-original.jpg

That little float pivots an arm that is rubbing against a series of different points on a circuit board. When it is low, it rubs on the lower points, giving a lower reading. When its high, vice versa.

Check the tracks on the board and make sure its making contact through the whole range. You should be able to test this with it out of the car just plug the fuel pump loom back in and have a play.

  • 5 months later...
Scadtional Rising Star

Scadtional

Posted
Posted

I have some pics of the last time I fixed mine, I'll post them tonight.

The floater and the pump are seperate, but they are on the same bracket, side by side.

Actually.... look here for pics.

http://www.skylinesaustralia.com/forums/R3...=fuel&st=20

NutR33 Community Regular

NutR33

Posted
Posted

When you look into the fuel tank with the top of the tank off you wil see a long white/brownish round tube in the right connor.

This is the fuel sender unit and i bet it will be laying/floating around. it should be clipped into the front of the tank beside the fuel pump bracket.

You should be able to clip it back in no problems.

Mine has the same problem after the last DECA day with a full tank of fuel.

Hopefully i will have time to fix it tomorrow and find a way for it to stay there better and get some photos at the same time to post up.

Cheers

NutR33

oweban Grand Master

oweban

Posted
  • Author
Posted
When you look into the fuel tank with the top of the tank off you wil see a long white/brownish round tube in the right connor.

This is the fuel sender unit and i bet it will be laying/floating around. it should be clipped into the front of the tank beside the fuel pump bracket.

You should be able to clip it back in no problems.

Mine has the same problem after the last DECA day with a full tank of fuel.

Hopefully i will have time to fix it tomorrow and find a way for it to stay there better and get some photos at the same time to post up.

Cheers

NutR33

Thanks for the reply, I appreciate it :D

Now that I've got my boot completely empty in preparation for my new boot install, I'll take a look this weekend. Would be nice to know how far a quarter of a tank gets me (not very far I guess). While I'm at it, might as well install my Bosch 040.

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

    • patrickxdf12
      Squeaking clutch/throw out bearing

      By patrickxdf12 · Posted

      Hello!  i just finished manual swaping my r34 skyline with a r33 rb20de box(RB71C)box  When the car is running it squeaks crazy loud and it was smoking from the gearbox area. The gearbox is fine it was tested. The clutch slave cylinder seems like it doesn't fully releases the clutch. I want to ask if this noise is from the throw out bearing or could it be the clutch assembly or disk att.xFliq87Gzw6kImKBVqDebXkj0fBqymk0JaYeP3_3SlM.mp4
    • RP1421
      S15 Spec R

      By RP1421 · Posted

      A few small updates since the previous post and lessons. I decided to do a little interior light upgrade on the 110. I quite like the iilumo items, even if they're a bit of a premium over other brands. You'll also note the Stedi Fogs, that will go into the S15 fog lights as I needed to match the bulbs since I got the new ones earlier. I hope they fit as the body is quite a bit longer than your normal bulb.  Annoyingly, I managed to trip the fuse, which normally wouldn't be an issue until I located the fuse. I can't say I've ever come across this. I had lucked out that someone nearby had a spare, but oddly enough Toyota dealerships seem to keep this in stock. I ordered some to keep in my stash and as luck would have it, someone else nearby tripped the same fuse so I passed on the favour.  I also did a little service on the 110 ahead of some additional work coming up. It's been annoying that Goleby's stopped carrying this particular HKS filter for the 110, so now I need to keep them on order from Japan. I also took the opportunity to install a bash plate and number plate riser. The plate riser is such a cheap but nice fix to help really tidy up the car. I'm tempted to now also replace my headlights, on this car. Both items were from Project Aero.    I also needed to replace the rear tyres on the 110, and after trying to get it aligned learnt that I need to replace some bushes in the front end, so that's next.  Closing out this update with a nicer picture as always! 
    • Murray_Calavera
      WTAC 2025

      By Murray_Calavera · Posted

      Yeah mate, never miss it.
    • Ozdavroz
      WTAC 2025

      By Ozdavroz · Posted

      Any going to watch World Time Attack at SMSP this year?
    • Jarsky
      R33 Fuel Pump & Brakes after alarm swap

      By Jarsky · Posted

      Appreciate the correction on the "ground", that will make a huge difference to looking at this. That makes complete sense about AF70/AF71 which is what I had come down to being the issue, one of these. I'll have another look in the ignition wiring when I get a chance next week. I'll also make up a jumper wire for running that AF73 test.  ECU is fine, relay itself is fine, pump harness is fine and the pump itself is fine. I am going to upgrade the Walbro 255 anyway with a DW300 I have since I need to replace the fuel sender and I'm going to upgrade the FPR with my chasebays kit ready for new plenum/injectors/dbw, but I'll get this working first. That's why this is so frustrating. 
×
×
  • Create New...