BUILDING E.F.I.E

[alanjohn]

What else would a co. that sales EFIE & MAP Sensors say but that it's easier and less expensive to buy they're unit on the net as opposed to building a unit. I'm not saying they're without merit hhogear.com gives loads of information on both systems. A friend told me that simply putting an extender on the front 02 sensor would go along way for mpg. Good luck. The EFIE is 66.00 w/ s&h.

[razorback]

took the plans that alexercsie sent me from better mileage.com to radio shack and the parts list came up to more than what i am bidding on one on ebay right now.can anyone tell me if it makes any difference where you wire the efie in between the 02 sensor and computer.

[AHI]

Can anyone help ?

I am an electronic engineer and see no problem in assembling a circuit that can feed the 2 electrodes.
My problem is that there must be a ressonance frequency that has the best results.
Does anyone know the value ?

Can we use an amplitude modulation or an envelope ? In that case what is the duty cycle and lower frequency ?

I most definately am not an electronics expert. I thought the EFIE was basically tricking the ECU into accepting that there is less oxygen in the exhaust than there really is. I think that all that needs to happen is for the EFIE unit to send out a slightly stronger electrical current, I think this raises the temperature of the sensor just sufficiently to do the job. I believe the extra is measured in millivolts. I don't think that resonance has much to do with it. I could be wrong and most certainly will not get into an argument about it.

AHI.

[razorback]

kim,just getting into the efie part myself.i believe it varies from make to make or engine to engine.the dual efies have dual controls city-highway.most of what i have read on the net is set in the middle and tweak one way or the other to fit your engine.better-mileage.com has the plans and some pretty good info on setting it up.not an engineer but hope that helps!!

[Miclo]

Recently while doing some research on choosing an EFIE to use for my 95 Ford Ranger, I was told by one HHO installer that they were more trouble than they were worth b/c the potentiometers needed to be constantly adjusted. He also told me that I didn't need one b/c my vehicle was an older model w/ a less than sophisticated computer. I find this revelation difficult to believe. What would be the best course of action concerning installing an EFIE into my truck?

[razorback]

i have had an hho generator in my 95 chevy for about 6 mths. now.has more power and runs smoother but gas mileage hasnt increased but maybe 15%.installed 02-standoff the other day and noticed an incretible increase in power.havent checked mileage yet.have been thinking this may be better than trying to keep an efie adjusted all the time.

[billhac]

if anyone needs plans for an EFIE i have one that i can send, i built mine for under 20$ and it doesent set off a check engine light