Harley Davidson Forums

Ignition/Tuner/ECM/Fuel Injection Need advice on ignition issues? Questions about a tuner? Have questions about a EFI calibration or Fuel Injection? Tips on Engine Diagnostics, how to get codes, and what they mean. Find your answers here.

WHATS a DFO

Thread Tools
 
Search this Thread
 
  #1  
Old 12-14-2004, 10:03 PM
charlie1's Avatar
charlie1
charlie1 is offline
Novice
Thread Starter
Join Date: Nov 2004
Location:
Posts: 18
Likes: 0
Received 0 Likes on 0 Posts
Default WHATS a DFO
What exactly is a DFO(digital fuel optimizer) How does it work and whats the cost?????
 
Reply Like
  #2  
Old 02-05-2005, 01:06 AM
igniter's Avatar
igniter
igniter is offline
Cruiser
Join Date: Jan 2005
Location:
Posts: 183
Likes: 0
Received 0 Likes on 0 Posts
Default RE: WHATS a DFO
Its a computer chip with 4 pots on it. When wired into the harness to the ECM (on fuel injected bikes) it acts like the jets on a carb. 1 pot adjusted low fuel, 1 for mid fuel, 1 for full throttle fuel, and 1 for adjusting fuel at acceleration kind of like an accelerator pump.
 
Reply Like
  #3  
Old 02-05-2005, 01:26 AM
Pelonz's Avatar
Pelonz
Pelonz is offline
Stellar HDF Member
Join Date: Jan 2005
Location: SoCal - 661
Posts: 2,669
Likes: 0
Received 3 Likes on 3 Posts
Default RE: WHATS a DFO
It increases the injector pulse width , the time the injector is open.
 
Reply Like
  #4  
Old 02-05-2005, 05:13 AM
SERB's Avatar
SERB
SERB is offline
Tourer
Join Date: Jan 2005
Location: Santa Clarita
Posts: 322
Likes: 0
Received 1 Like on 1 Post
Default RE: WHATS a DFO
When I saw DFO, I thought you were talking about "Done Fell Out"....

So how much will a digital fuel optimizer improve a stock motors performance?
 
Reply Like
  #5  
Old 02-06-2005, 10:58 PM
rdking's Avatar
rdking
rdking is offline
Tourer
Join Date: Sep 2004
Posts: 356
Likes: 0
Received 0 Likes on 0 Posts
Default RE: WHATS a DFO
When I saw DFO, I thought you were talking about "Done Fell Out"....

Serb,

I've had that happen to me but I'm not at liberty to discuss it!
 
Reply Like
  #6  
Old 02-07-2005, 05:59 AM
SERB's Avatar
SERB
SERB is offline
Tourer
Join Date: Jan 2005
Location: Santa Clarita
Posts: 322
Likes: 0
Received 1 Like on 1 Post
Default RE: WHATS a DFO
Dont worry, rdking, you are in good company!
 
Reply Like
  #7  
Old 02-14-2005, 09:02 PM
04883XLC's Avatar
04883XLC
04883XLC is offline
Banned
Join Date: Jan 2005
Posts: 17
Likes: 0
Received 0 Likes on 0 Posts
Default RE: WHATS a DFO
and there I was thinking DFO was for Dumb F@(kin Operator ,
 
Reply Like
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Analog Fuel Injection?
GWinkleman
Sportster Models
8
01-03-2012 06:29 PM
Fuel Injection Systems
mgalfano
General Harley Davidson Chat
1
12-30-2007 09:29 PM
Fuel Purifiers
Fishrdr
Exhaust System Topics
1
07-27-2007 02:47 AM
Tags
Back to Subforum
Ignition/Tuner/ECM/Fuel Injection
View Next Unread
More HP from High Voltage Coil?




Advanced Search
Quick Reply: WHATS a DFO


Reply Closed Thread Share
Forum Jump

All times are GMT -5. The time now is 10:53 AM.