Jump to content

Welcome to Ultimate Subaru Message Board, my lurker friend!

Welcome to Ultimate Subaru Message Board, an unparalleled Subaru community full of the greatest Subaru gurus and modders on the planet! We offer technical information and discussion about all things Subaru, the best and most popular all wheel drive vehicles ever created.

We offer all this information for free to everyone, even lurkers like you! All we ask in return is that you sign up and give back some of what you get out - without our awesome registered users none of this would be possible! Plus, you get way more great stuff as a member! Lurk to lose, participate to WIN*!
  • Say hello and join the conversation
  • Subscribe to topics and forums to get automatic updates
  • Get your own profile and make new friends
  • Classifieds with all sorts of Subaru goodies
  • Photo hosting in our gallery
  • Meet other cool people with cool cars
Seriously, what are you waiting for? Make your life more fulfilling and join today! You and your Subaru won't regret it, we guarantee** it.

* The joy of participation and being generally awesome constitutes winning
** Not an actual guarantee, but seriously, you probably won't regret it!

Serving the Subaru Community since May 18th, 1998!

Guest Message by DevFuse

- - - - -

Crazy fuel sender?

  • Please log in to reply
6 replies to this topic

#1 1-3-2-4


    Subaru Mike!

  • Members
  • 3,792 posts
  • Greenwich

Posted 10 October 2011 - 09:02 AM

I've been thinking about this and it has me wondering now myself.. So not that I intentionality let it get this low but I got my gas low enough that it was resting on the peg and I had no signs of stumbling or anything like that.. Now when I had my 95 Legacy when I started to get that low and make left hand turns it would start to starve for fuel.. So now this morning I was driving to work and I was a bit above empty and next thing I now I'm under and I'm resting on the peg again..

So I put gas in after work.. $15 worth was about 3.9 Gal.. So that brings it up from the peg to 1/4 and I'm thinking that can't be right?

And while driving home I noticed it went down a little bit but then came back up.. I was thinking about pulling the assembly and testing the fuel sender.. From what I hear a full tank should be about 1 MegaOhm and I forget what the lower end should be.

#2 Fairtax4me



  • Members
  • 13,034 posts
  • Charlottesburg, VA

Posted 10 October 2011 - 08:52 PM

My 95 wagon is the same way. The needle moves up and down all over the place. I've watched it move from 1/8th tank to up over 1/4.
Last week I set the needle on the peg then drove to work and back two more times. Only took 13 gallons to fill it. I have noticed though that the needle on the wagon comes down form full much sooner than my sedan ever did. Going by the gauge, (which is pointless) I typically only get 40 miles out of that first "quarter".
My sedan does at least 60 miles of the same type of driving to move that first "quarter".

I have some BG 44K that I'm going to pour in the wagon and maybe it will help the fuel sender. Don't know.

#3 1-3-2-4


    Subaru Mike!

  • Members
  • 3,792 posts
  • Greenwich

Posted 10 October 2011 - 09:24 PM

Never got to pull it today to check but yeah my 95 impreza was really bad anything at 1/2 and going up a hill would read empty lol.

Next month I should know more driving down to VA then NC

#4 RedimprezaOB


    New User

  • Members
  • PipPip
  • 21 posts
  • Portland

Posted 10 October 2011 - 09:53 PM

I probably shouldn't say amything because I own a 2005. But, I was at my sending units last year at this time. In this newer car the closer to 0 ohms the closer to full the reading and 90 to 95 Ohms was empty. ...rrrr the other way round. Point being a Megaohm seems really high. 50 ohms put me at a perfect half tank.

#5 1-3-2-4


    Subaru Mike!

  • Members
  • 3,792 posts
  • Greenwich

Posted 10 October 2011 - 09:56 PM

I have a look at the manual again to be sure I may not pull it at all this week since I don't want the inside to smell of fuel with the girlfriend coming up.

#6 987687


    Rally Suby!

  • Members
  • 4,264 posts
  • Northern Maine

Posted 11 October 2011 - 06:56 PM

Just keep track of your trip meter if you don't trust your gas gauge.
My 96 had a random gauge sometimes, BUT, the low fuel light is a totally different circuit. And that always came on when there was just over 2 gallons left, regardless what the gauge said. So that's nice, at least.

#7 1-3-2-4


    Subaru Mike!

  • Members
  • 3,792 posts
  • Greenwich

Posted 02 August 2012 - 06:30 PM

Ok I need to find one.. If you check on car parts it never says which sender it is.. and being as it's not that big I don't want to drive out and see they don't have it.. (happened when locating a transmission)

Since I put a full tank in and drive about the same way each week I figured around 260-280 it would start to show the low fuel light.

Posted Image

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users