Remember me
Login  |   Register
Old August 15th, 2011, 05:42 PM   #1
Senior Member

ducatis in the registry:
[848]

 
TheWooginator's Avatar
 
Join Date: Apr 2008
Location: Fort Collins, CO
Posts: 850
Fuel level sensor

So my 848 has been getting more and more finicky with regards to range and when the fuel reserve light kicks on, if at all. It has ran out on me twice and another time today for my buddy after we traded bikes for a couple days. This madness must STOP!!! I keep track of the range between fill-ups and the reserve usually comes on after 100-120 miles. When I fill it up at the pump, I top it off. 2.8 - 3.2 gallons give or take. The first time it stranded me, it went 15 miles on reserve. The second time it went 7 miles. Today, for my buddy, it never came on. I'm assuming this is due to the fuel level sensor. My question is whether or not it needs to be replaced or if there is a float that typically gets hung up that I can pull and fix? If it's a matter of replacing the sensor, does anyone know where I can get one cheaper than dealer cost? I can pull the tank and gut it out to get to it, but if anyone has done this themselves and has any pointers, I'd like to hear them. Thanks!

Woogie

PS: That carbon "endurance" tank is looking pretty good right now.....
__________________
Carpe the Diem!! Seize the Carp!!
TheWooginator is offline   Reply With Quote
Remove Ads
Old August 18th, 2011, 07:47 AM   #2
Senior Member

ducatis in the registry:
[848]

 
TheWooginator's Avatar
 
Join Date: Apr 2008
Location: Fort Collins, CO
Posts: 850
Someone has to have done this themselves...
__________________
Carpe the Diem!! Seize the Carp!!
TheWooginator is offline   Reply With Quote
Old August 18th, 2011, 10:51 AM   #3
Senior Member

ducatis in the registry:
[998]

 
Slower than you's Avatar
 
Join Date: Feb 2008
Location: Wisconsin USA under duress
Posts: 2,937
The low fuel light doesn't use a float. It's operated by a solid state device called a thermistor.

The thermistor is enclosed in a device with a heating element. The heater is always powered by 12V and is submerged in fuel, and the mass of the fuel takes the heat away. Once the tank is low the heater can't cool and the temperature naturally rises. The thermistor becomes conductive with heat and the low fuel light comes on.

Check that there is power to the sensor. If there is, replace it as it's not heating or the thermistor has croaked.

You can take the pump assembly out and bench test it if you want. Or hook it to the bike and turn the key on. Be careful as that sucker gets really hot.
Slower than you is offline   Reply With Quote
Old August 18th, 2011, 11:09 AM   #4
Senior Member

ducatis in the registry:
[848]

 
TheWooginator's Avatar
 
Join Date: Apr 2008
Location: Fort Collins, CO
Posts: 850
You are the man. Much appreciated. So the thermistor is part of the fuel pump assembly? Can it be powered up and tested separately or will it run the fuel pump too?
__________________
Carpe the Diem!! Seize the Carp!!
TheWooginator is offline   Reply With Quote
Old August 18th, 2011, 11:53 AM   #5
Member

ducatis in the registry:
[848]

 
Kawaiiracer's Avatar
 
Join Date: Nov 2010
Location: Avon Lake OH
Posts: 126
you should always do the quick eyeball inside the gas tank to see how low it is physically.
Kawaiiracer is offline   Reply With Quote
Old August 18th, 2011, 01:41 PM   #6
Senior Member

ducatis in the registry:
[1198]

 
Mr Jurassic's Avatar
 
Join Date: Mar 2009
Location: Victoria,TX
Posts: 688
15 MILES? thats it?
i got 28.5 before i had to be towed another 6 to the store
__________________
BIKES OWNED
2008 EJ-250R RED------------------Kawasaki (Sold)
2008 cbr1000 light blue/black-----Honda (Wifes) TOTALED 02/20/2010

2006 ZX-6R (636) White-----------Kawasaki
2009 1198 White---------------------Ducati
Mr Jurassic is offline   Reply With Quote
Old August 18th, 2011, 05:15 PM   #7
Senior Member

ducatis in the registry:
[848]

 
TheWooginator's Avatar
 
Join Date: Apr 2008
Location: Fort Collins, CO
Posts: 850
Quote:
Originally Posted by Kawaiiracer View Post
you should always do the quick eyeball inside the gas tank to see how low it is physically.
I haven't figured out a way to do that while riding yet...

Quote:
Originally Posted by Mr Jurassic View Post
15 MILES? thats it?
i got 28.5 before i had to be towed another 6 to the store
Yeah. Then it went 7 miles and then it never came on at all haha. Whata piece of sh*t.
__________________
Carpe the Diem!! Seize the Carp!!
TheWooginator 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
Trackbacks are On
Pingbacks are On
Refbacks are On




Search tags for this page
ducati 1098 reserve fuel switch
,
ducati 1098 thermistor
,

ducati 748 fuel level sensor

,

ducati fuel level sensor

,

ducati fuel sensor

,
ducati low fuel level sensor
,
ducati thermistor
,
fuel level sensor thermistor
,

how to fix fuel light illuminates ducati

,

thermistor fuel level sensor

Click on a term to search for related topics.


All times are GMT -7. The time now is 01:24 AM.


SEO by vBSEO ©2011, Crawlability, Inc.