Eagle Research EFIE Online ... - Fuelly Forums

Android Users - Coming Soon! - Migrating from aCar 4.8 to 5.0

Thread Tools Display Modes
Old 09-17-2007, 11:32 PM   #1
Supporting Member
cfg83's Avatar
Join Date: Sep 2006
Posts: 1,779
Country: United States
Eagle Research EFIE Online ...

Hello -

I have had this gizmo online since August 8, 2007, but I am still messing with it, so it is NOT in continuous use :

Electronic Fuel Injection Enhancer (EFIE) Device

Attachment 928

I am monitoring it's behavior with this :

Air/Fuel Ratio (AFR) Gauge Online ...

It is connected as follows :
Attachment 927

Here is a youtube of it in action :

EFIE Gizmo

In the above video, the EFIE setting is "mild" when it is on. I am trying to add a small fuel trim that still allows for moderate acceleration.

Here is my interpretation of what I am seeing with the EFIE. When the EFIE is on, the A/F ratio creeps up to 14.7 + deltaT. The deltaT is a function of how high I set the EFIE. But, I also have a second post-cat 02 sensor that is used to manage emissions. Because the second 02 sensor is telling the ECU/PCM that the car exhaust is running lean, I think the ECU/PCM tries to resolve the difference by jumping back to 14.7, and then creeping up again. Therefore, I think the result of the EFIE is that instead of floating close around a "narrow ratio" of :

14.7 +- .2

It is now floating around the deltaT with a much wider span :

(14.7+deltaT) +- deltaT

What this means for my EFIE is that I still go back to 14.7, but I spend alot of time "floating up" above 14.7 before going back down.

Notes :

- Since the ScanGauge does not use the short/long term fuel trims, I don't think it is registering the effect.

- I don't like the teeny-tiny screw. It would be nicer if it had something I could tap into. If the screw was on the opposite side, at least it would be easier to package with a hole for inserting a small screwdriver.

- It's output-bias-voltage is temperature sensitive. I wouldn't mind this, except for the fact that I didn't find out until after I bought it. That detail should be on the website. I intend to package it in insulation.

- I may make it a "no load" option for now. If I tap into the TPS signal, I can make it so that it will only be on when the TPS is zero, and off when I accelerate. That way, the engine will simulate "diesel going lean" under idle/no load conditions.

Attached Thumbnails
Click image for larger version

Name:	EFIE_setup.jpg
Views:	193
Size:	8.0 KB
ID:	790   Click image for larger version

Name:	my_efie.jpg
Views:	257
Size:	28.4 KB
ID:	791  
Old School SW2 EPA ... New School Civic EPA :

What's your EPA MPG? http://www.fueleconomy.gov/feg/calculatorSelectYear.jsp
cfg83 is offline   Reply With Quote

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 Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Mobile Site Extremely Slow TheStealth Fuelly Web Support and Community News 0 09-05-2013 07:07 AM
Uploading old fill up info Electra225 Fuelly Web Support and Community News 2 05-20-2011 08:29 AM
Where can I get coroplast? OdieTurbo Aerodynamics 10 06-19-2007 11:28 AM
New member /2007 Prius billynjoanna Introduce Yourself - New member Welcome 10 06-09-2007 10:56 AM
hi SuperRobot46000 Introduce Yourself - New member Welcome 6 07-15-2006 06:44 PM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -8. The time now is 02:58 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.