Home made 'EFIE', will this work?

[R&D4me]

Hi everyone,

1993 Ford V6 4.0L pushrod engine EEC-IV (OBD-1)

Got this design off youtube and he says it works..... any comments, notes, etc... would really be appreciated. I have an adjustable control for both banks w/gauge as in attachment.

Tnx

[DarthShawner]

I am curious about this too. I saw it a couple days ago and couldn't find any other info.
I want to install mine in a '94 Escort GT 1.8L DOHC.

Shawn

[lhazleton]

The EFIE shown in the attachment will work to a degree. It was designed by Bing years ago. It was the first one I used. It costs under $8 to build, so it may be worth your while to try it in the 1.8L.
For the 4.0 engine, you just double-up on everything so as to control the pre-cat O2 sensors on both sides.

[R&D4me]

The EFIE shown in the attachment will work to a degree. It was designed by Bing years ago. It was the first one I used. It costs under $8 to build, so it may be worth your while to try it in the 1.8L.
For the 4.0 engine, you just double-up on everything so as to control the pre-cat O2 sensors on both sides.

True that.

Latest update: (It works!)
So far so good. The "OK" attachment shows top variable resistors as my Lft./ Rt. O2 adjustments; I have of course isolated them in the EFIE [doubling up] as you suggested.
The lower Variable reststors are for Hwy/City MAF adjustments - also working great. The center gauge shows my "with HHO" and without "Closed loop ford eec-IV/OBD1" sensor measurements. With the system on, I adjust into the lean area of the gauge until performance starts to drop, then I bring it up a smidge. (Basically taking control of my mixture, something I don't advise anyone without an experianced/working knowledge of an 02 feedback system)

My new attachment shows:
A- being my on/off for the PWM
B- Being on/off for my O2 (So when key off I don't drain the little AAA's.
C- PWM adjustable from 0.75Hz~5000Hz.
D- Fast switching N-MOSFET

Thanks for the responses guys - it sort of 'Co-signs my efforts'....

[lhazleton]

Looks good. Hope it works out well for ya!

[R&D4me]

If I post results, do 'They' come after me? you know, the men in black...:D

[DarthShawner]

That does look pretty nice. Mind if I ask where you sourced your parts and if you have a parts list handy?

I am currently in the process of putting together my first dry cell and would like to start gathering up parts and info for my electronics controllers (PWM, EFIE, etc.).

Are you also running an ammeter by chance to keep an eye on your amp draw from your electrolyzer? If so, what are you using and where did you source it? I have been scouring ebay and I just can't bring myself to order the Chinese stuff and it seems that prices are a bit high for the rest. Though that could just be me being cheap. LOL

Cheers!
Shawn

[R&D4me]

That does look pretty nice. Mind if I ask where you sourced your parts and if you have a parts list handy?

I am currently in the process of putting together my first dry cell and would like to start gathering up parts and info for my electronics controllers (PWM, EFIE, etc.).

Are you also running an ammeter by chance to keep an eye on your amp draw from your electrolyzer? If so, what are you using and where did you source it? I have been scouring ebay and I just can't bring myself to order the Chinese stuff and it seems that prices are a bit high for the rest. Though that could just be me being cheap. LOL

Cheers!
Shawn
Hey Shaun, what's your ride? I4, V6 or v8??? model? year?

Before I installed, I used an 'inline ammeter' capacity of 20amps. I measured each of my (single wet cell unit) 3 cells in the design individually, and tracked temperature/electrolyte mixture variables prior to installation. I have an inline fuse to limit [or blow] if current/temp goes amuck...

Bought nothing from eBay, all homebuilt; what I have is from local electronics store. My greatest investment was the $44 dollar dual O2 gauge u see in my avatar! ;)

[DarthShawner]

That's awesome R&D... I am planning on the first install for my '94 Ford Escort GT with 1.8L DOHC (my daily driver). I am thinking all I should need is an EFIE and not a MAF enhancer since I am not even sure if I could do anything with the MAF (which is actually a VAM). I would like to have a PWM as well to make sure the current draw stays level.

If all goes well with that one then next up would be a bigger model to go in my '95 Jeep Grand Cherokee with the 4.0L I6. If my thinking is correct, then an EFIE is all I will need for that as well. I would hope to build something that does at least 1.5 to 2 LPM for it. This is all dependent upon me getting the Escort working properly first though.

I love the look of that dual O2 gauge. Where might one locate such a fine specimen? :)

I have been wanting to do this for a couple of years now, but never got to it. Seeing as how fuel prices keep climbing almost daily, now is the time for action.
Thanks for the help and info!

Shawn

[R&D4me]

I love the look of that dual O2 gauge. Where might one locate such a fine specimen?

O'Rielly's auto parts.... you may need to order it.


Cheers!