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-   -   FS: Dual EFIE Box (https://ecomodder.com/forum/showthread.php/fs-dual-efie-box-11059.html)

gto78 11-19-2009 07:58 AM

FS: Dual EFIE Box
 
I'm selling a used EFIE unit made for vehicles with dual bank O2 sensors. It also works with single O2 sensors, however if you have a V-6 or V-8 then you need this unit since there will be 2 O2 sensors off the engine. Works perfectly, and in perfect condition. Will sell for $40 or best offer, and I'll pay for shipping.

Thanks

JOE

vtec-e 11-19-2009 02:38 PM

What does it do?

gto78 11-19-2009 10:21 PM

The EFIE is used to intercept the oxygen sensor signal and then lets you adjust it before it reaches the computer. This allows you to manually force the engine to run leaner. Some people gain mpg using this, some use it to make full use of their HHO generator.

It gets wired into the oxygen sensor circuit and you set it up using a volt/ohm meter and a small flat screwdriver. Once it's set up you can then turn it on or off with a on/off switch that's built into it. I had mine mounted inside the glove box and could turn it on after I set cruise control and watch the mpg gauge slightly increase. Or you can just leave it on all the time.

Jethro 01-04-2010 11:30 PM

Wow, that is absolutely insane. As I was driving home from Denver I thought "Hey, someone should make a box that intercepts the signal from the O2 sensor and tweaks what the computer reads"

Small world sometime.


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