Such thing as an Inexpensive EFIE? - Fuelly Forums

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Old 06-03-2008, 07:26 PM   #1
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Such thing as an Inexpensive EFIE?

I have a Mits Galant 2004 with 4 frickin O2 sensors.

I need two dual EFIES and I am not looking to spend $200

Any idea who sells reasonable priced dual EFIEs?

These things are so simple and so grossly overpriced!
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Old 06-03-2008, 07:38 PM   #2
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Efie

This one looks decent. All I know is what you can read also. I ran across this looking for an HHO PWM.

http://www.pwmpower.com/efie.html
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Old 06-03-2008, 07:46 PM   #3
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Any other suggestions?
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Old 06-03-2008, 07:58 PM   #4
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We've discussed hooking up a 0.5 volt battery to the o2 sensor wire as a cheap EFIE, but I haven't tried it yet (You can seach for "tricking O2 sensor"). You might try an oxygen sensor extender for $2 or so (drill out a spark plug anti fouler)
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Old 06-03-2008, 08:09 PM   #5
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Thanks for the reply, however I am looking to do this correctly,
I want to measure results and be able to turn things off and on.

a .5 volt battery won't do anything worthwhile nor will an extender
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Old 09-27-2010, 11:05 PM   #6
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Re: Such thing as an Inexpensive EFIE?

You can type in SIMPLE CHEAP EFIE in GOOGLE,
or type it in to YOUTUBE.COM
and you should get my post of a simple, cheap efie.
It requires no oscilloscope, no meters, no test waveform generators,
no calibration equipment, no power supplies, because:
It "is" the meter... With changing weather, driving conditions,
different gasolines, and hundreds of other factors, such as whether
you are primarily in the city, or going on a long cross- the - nation
tour, UNLIKE many "other" designs that use oscilloscopes, voltage and
amperage precision power supplies, a couple of multimeters, etc,
and PERMANENTLY SET the EFIE to one reading with a tiny SET SCREW,
this EFIE shows you the levels of the O2 Sensor and the added EFIE
amount, anytime you want, and you can adjust it correctly and
easily over time.
It is SOOOooo cheap to make that you can quickly and easily
make two.
The plans and diagrams are free, and the only difficult part is to
accurately finding the single OUTPUT wire on the O2 sensor, ... thats it.
Once installed, you can watch the pulsing signal under normal
conditions, and then add in whatever amount you want.. Since there
is a bright LED DOT meter, you can visually see the characteristics
of the O2 at a glance, and you have an excellent idea of any
adjustments.

youtube parts ( a bit fuzzy ) is:

http://www.youtube.com/watch?v=4C9WIhtETho

youtube demo of the unit in action is at:

http://www.youtube.com/watch?v=N02-8XM0G2Q

CLEAR, JPGs which are designed for printing are online at:

kidbots.com/WEBADD/HYDROGEN_FUEL

The cost for the units is in the neighborhood of $10 depending on
what case and parts you use, and what materials you have already -
for example, most handy people already have 1 K resistors, switches,
solder, etc in their kits.

NOTE: You ONLY need EFIEs usually on the INPUT O2's depending on how
you are using them - very few people put them on the OUTPUT O2's,
but only you know what you are using them for! Since you usually get a
break in quantity, getting 2 would run you $20 or so, 4 units would cost
$30 -40 depending on if you get great prices on buying a couple of
items in a bag at a lower price... Some of the ON OFF switches would
do for ALL 2 or 4 units, and you can save by using one case, ONE power
"ON" led etc, so the price for a few of these used in the same vehicle
would lower...

Good luck !

ROBIN
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