Welcome to the North American Subaru Impreza Owners Club Monday September 1, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Service & Maintenance

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 03-29-2008, 12:15 PM   #1
hockeygm
Scooby Specialist
 
Member#: 80681
Join Date: Jan 2005
Chapter/Region: NESIC
Location: Warwick, RI
Vehicle:
2003 Impreza WRX
Platinum Silver

Default gas light comes on early

lately my gas light has been coming on early. like i mean real early. 3/4s of a tank half tank. it will eventually shut off but i still dont think it should be happening. it started to do it at about 1/4 tank of gas and has progressively started to come on earlier. i did get rear ended on my gas tank side a few weeks ago. it came on early before that but after the accident is when it started to come one at like 3/4s of a tank. any ideas?
* Registered users of the site do not see these ads.
hockeygm is offline   Reply With Quote
Old 03-29-2008, 01:33 PM   #2
dcpatters
Scooby Newbie
 
Member#: 125278
Join Date: Sep 2006
Chapter/Region: SCIC
Location: Irvine, CA
Vehicle:
2011 X MR
AS

Default

Possibly the fuel float on the assembly. Perhaps got whacked when the rear was impacted? Are you handy with a wrench? Could remove the fuel pump assembly and check.
dcpatters is offline   Reply With Quote
Old 03-29-2008, 07:58 PM   #3
hockeygm
Scooby Specialist
 
Member#: 80681
Join Date: Jan 2005
Chapter/Region: NESIC
Location: Warwick, RI
Vehicle:
2003 Impreza WRX
Platinum Silver

Default

yea i am pretty handy with a wrench. i installed the fuel pump so it shouldnt be a big deal.
hockeygm is offline   Reply With Quote
Old 04-01-2008, 01:10 AM   #4
plode
Scooby Specialist
 
Member#: 116910
Join Date: Jun 2006
Default

I have determined mine comes on with about 4 gallons left in the tank. I hit the gas station a few miles after it came on(2 miles or so) and it took 11.7 gallons. 15.9 gallon tank, 11.7 gallons to fill,=4.2 left in tank.

That seems like a bit much to me, at just over a third of a tank.
Then again, when I do fill it, it goes up past "F".
plode is offline   Reply With Quote
Old 04-01-2008, 09:36 PM   #5
08EJ25
Scooby Specialist
 
Member#: 174022
Join Date: Mar 2008
Chapter/Region: TXIC
Location: Alamogordo/El Paso
Vehicle:
2008 WRX
Lightning Red

Default

Quote:
Originally Posted by devb16a2vtec View Post
I have determined mine comes on with about 4 gallons left in the tank. I hit the gas station a few miles after it came on(2 miles or so) and it took 11.7 gallons. 15.9 gallon tank, 11.7 gallons to fill,=4.2 left in tank.

That seems like a bit much to me, at just over a third of a tank.
Then again, when I do fill it, it goes up past "F".
Mine comes on at about the same point. Takes just about 13 gallons to fill it up on a 16.9 gallon tank. AT this point I just know that I still have plenty of gas once the light comes on.
08EJ25 is offline   Reply With Quote
Old 04-02-2008, 08:41 AM   #6
hockeygm
Scooby Specialist
 
Member#: 80681
Join Date: Jan 2005
Chapter/Region: NESIC
Location: Warwick, RI
Vehicle:
2003 Impreza WRX
Platinum Silver

Default

mine used to come on with like 1.5 gallons left. and it was that way for a while and its gottne worse.
hockeygm is offline   Reply With Quote
Old 04-02-2008, 09:36 AM   #7
anickode
Scooby Specialist
 
Member#: 141633
Join Date: Feb 2007
Chapter/Region: MWSOC
Location: Ann Arbor, MI
Vehicle:
2002 WRX Wagon
Shiny new silver!!!

Default

Mine is kind of weird. I'm not sure if my fuel sending unit is bad, but if i'm driving long distance and run low on gas, the light will come on when the needle is about a needle's width above the E line. However, if I'm driving under 20 miles, the gauge will run all the way down BELOW the E line and the light will not come on, but then next time I start the car it will be on.

And it pisses me off how long the needle takes to respond to a full tank. Takes 60+ seconds for it to go from E to F upon startup after filling the tank.
anickode is offline   Reply With Quote
Old 04-07-2008, 01:05 PM   #8
ALB03WRXwagon
Scooby Newbie
 
Member#: 172668
Join Date: Feb 2008
Location: Albany NY area
Vehicle:
03 WRX wagon
Sedona Red pearl

Default

This doesn't answer your question, but my 03 wrx wagon's fuel light comes on the second the needle touches the e, and I'll have about 3 gals. left. Just FYI
ALB03WRXwagon is offline   Reply With Quote
Old 12-03-2008, 04:49 PM   #9
flyboymike
Scooby Specialist
 
Member#: 83765
Join Date: Mar 2005
Chapter/Region: South East
Location: The modern Yellow Peril
Vehicle:
2005 WRX wagon
WR Blue

Default

Bump for an early low fuel warning light at 1/2 a tank. It went off again within maybe a minute of the engine running. This was one of the colder mornings we've had so far this winter, and I've been in warmer climes for the past several years. Could the cold have caused the light?
flyboymike is offline   Reply With Quote
Old 12-03-2008, 10:47 PM   #10
rick-l
Scooby Specialist
 
Member#: 33868
Join Date: Mar 2003
Location: Chesterfield, MO
Vehicle:
2003 wrx
srp

Default

From the car information manual

Quote:
The low fuel warning light operates as follows:
The combination meter CPU continually monitors the resistance signal from the fuel level sensor. It turns on the low fuel warning light if a resistance value corresponding to the critical fuel level (approx. 78 ohms) is detected successively for about 10 minutes or the period spent for driving a distance of 10 km.
The main sensor is 0 ohms full and 51 ohms empty.
The sub sensor is also 0 ohms full and 43 ohms empty.
They are connected in series so the value presented to the meter is the sum.

Does your guage vary linearly from full to empty?
rick-l is offline   Reply With Quote
Old 12-09-2008, 07:08 PM   #11
flyboymike
Scooby Specialist
 
Member#: 83765
Join Date: Mar 2005
Chapter/Region: South East
Location: The modern Yellow Peril
Vehicle:
2005 WRX wagon
WR Blue

Default

Quote:
Originally Posted by rick-l View Post
From the car information manual


The main sensor is 0 ohms full and 51 ohms empty.
The sub sensor is also 0 ohms full and 43 ohms empty.
They are connected in series so the value presented to the meter is the sum.

Does your guage vary linearly from full to empty?
It's pretty linear, yeah. Hasn't happened again in the past week.
flyboymike is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Gas light comes on early Cakesniffer Service & Maintenance 2 01-08-2009 01:38 AM
Gas light comes on too soon 06AWD Service & Maintenance 22 03-20-2008 08:51 AM
when does your gas light come on? Horten Factory 2.0L Turbo Powertrain 15 05-18-2004 10:49 PM
How much gas is left when the low gas light comes on? catass STi Forum Archive 11 06-30-2003 06:21 PM
check engine light comes on at low gas? halftendril General Community 1 11-28-2002 02:49 AM


All times are GMT -4. The time now is 04:56 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.