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Author Topic: Poor mans EFIE?  (Read 19509 times)

sportcoupe

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Poor mans EFIE?
« on: June 13, 2008, 11:17:06 PM »
I found this alternative, cheap and easy to make circuit to alter the O2 sensor signal compared to a full EFIE device. It was buried in chapter10.pdf, I cannot find any more information on it. Can anyone provide feedback on it?


"An alternative: As the signal coming from the oxygen sensor to the vehicle?s ECU fuel computer needs to be raised slightly to allow for the much cleaner exhaust produced when a booster is being used, an alternative solution has been suggested and tested. The idea is to add a small, adjustable voltage to the signal already coming from the oxygen sensor. This voltage can be from a single ?dry-cell? battery and adjusted with a variable resistor.

(http://www.blackgto.com/jeep/alternative.jpg)

The circuit shown here allows a voltage anywhere from zero to 0.5 volts to be added to the oxygen sensor signal. This must not be done unless a booster is running. Using it without a booster is liable to lead to engine overheating and possible valve damage. This, of course, applies to the previous oxygen sensor signal adjusting circuit as well."

sportcoupe

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Re: Poor mans EFIE?
« Reply #1 on: June 14, 2008, 06:00:54 PM »
Judging by no responses I assume no one has used this circuit to adjust their O2 sensor. I assume this is because this cheap circuit does not work.

atlantex

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Re: Poor mans EFIE?
« Reply #2 on: June 14, 2008, 06:51:06 PM »
If the circute is functioning as described, then it will work in a car but leaner fuel will head up the whole engine, so you have to use
a additional cooling option, like a water bubbler.


you can read some basics about cheating the lambda-carcomputer system

http://better-mileage.com/memberadx.html


atlantex

lapperll

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Re: Poor mans EFIE?
« Reply #3 on: July 01, 2008, 01:33:58 AM »
I also found a O2 altering devise similar to the one you have posted.  The Mad Scientist HHO Research has a series of three videos on U-Tube where he builds and tests the unit. I haven't tried to build one yet, but it seams like it works. 

Hope this helps,


http://www.youtube.com/watch?v=jgHJDD6UK0A


Lapperll
« Last Edit: July 01, 2008, 01:58:11 AM by lapperll »

innovation_station

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Re: Poor mans EFIE?
« Reply #4 on: July 01, 2008, 03:00:09 AM »
i just built this and it does what it is suspoto  8)

i have not installed it yet tho

ist

innovation_station

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Re: Poor mans EFIE?
« Reply #5 on: July 03, 2008, 07:20:47 AM »
i was impressed by this lil circuit ....


 ;D ;D

i do recomend this unit

 in my testing so far it has been worth the build time

ist 

makeing 1 more as i have 2 o2 sensors....


hunter

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Re: Poor mans EFIE?
« Reply #6 on: July 03, 2008, 06:18:10 PM »
I don't know how to make it, so I bought mine from Eagle Research. I don't make that much HHO yet to see any need of it at the moment since I have O2 extenders installed, but when I finish my new generator  that will need it.

qld

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Re: Poor mans EFIE?
« Reply #7 on: August 01, 2008, 03:50:41 PM »
Hi Innovation,is it possible to post a better picture of the inside of the box so we can see where the wiring goes because i'm a bit confused about the pot wire going back to the - side of the battery in the layout, thanks

pese

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    • Freie Energie und mehr ... Free energy and more ...
Re: Poor mans EFIE?
« Reply #8 on: August 02, 2008, 02:14:39 AM »
I found this alternative, cheap and easy to make circuit to alter the O2 sensor signal compared to a full EFIE device. It was buried in chapter10.pdf, I cannot find any more information on it. Can anyone provide feedback on it?

 

(http://www.blackgto.com/jeep/alternative.jpg)

Jes this will work.
if the Potmeter is left position (slider  is  to Minus of battery-Level , than ist same as "off",
so you must not angry to try this "sensetiv" to "shift" the level.
Pese

Randohr

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Re: Poor mans EFIE?
« Reply #9 on: August 02, 2008, 05:03:37 PM »
My EFIE from Eagle Research is on back order, so I made this simple circuit and installed it.  It works great!!  I adjusted the resistor values up to lower the circuit current.  I use a 9vdc battery vs. the 1.5vdc AA for longer life.  I'm also built a variable voltage regulator for the MAP sensor.  My setup is a home made 4 cell series/parallel unit powered by a home built "Electric-light" PWM set at 10amps.  My EFIE is set at 175mvdc bias, MAP is set to 4vdc.  My results, as of yesterday, is an increase from 15mpg to 27.5 mpg. (first real test since installing working efie).  My engine temp is down, the engine runs quieter and smoother, I seem to have more hp to lug up hills in 5th gear and the small amount of h2o coming out my exhaust is getting cleaner.  I'm hoping for a repeat test result.  My test vehicle is a 91 F150 4x4 w/ 4.9L.   I first attempted to make this voltage divider circuit using dual voltage regulators powered off the vehicles 12vdc.  The problem is the mv output needs to float.  This circuit test "grounded" the O2 sensor.  This is the beauty of the Eagle research efie, it floats the mv output using a iso trans.  Simply...take a regulated dc input, convert it to ac, isolate it w/ a iso transformer, rectify it, filter and adj it for use w/ the O2 sensor.  No batteries to monitor and change when needed. 
Good luck, Gods speed
Randohr

Creativity

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Re: Poor mans EFIE?
« Reply #10 on: August 02, 2008, 09:25:17 PM »
Well, if u have a  car battery in ur car already... why to use an extra one in this design?Just adjust the rating of a resistor accordingly and connect it to the car battery :)

pese

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Re: Poor mans EFIE?
« Reply #11 on: August 03, 2008, 12:38:14 AM »
extra battery needed, because thisone must be "galvanich separated from the supply (car) battery,
offcause this is not connected to "ground = minus) it is an part of the "sensing /probe " wire /connection.
Pese

An simply "a" cell - ALKALINE- will power this OVER YEARS (without of USE of an Power off switch !!
Because powerconsumtion ist only 0,1mAmp !!  (1,5V  over R(load) 15 Kili-Ohm ist 0,1ma Current)

Super God

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Re: Poor mans EFIE?
« Reply #12 on: August 05, 2008, 12:11:27 AM »
You might also be able to use this with the s1r ignition system instead a hho booster.  I will test this once I have built mine.