I just purchased a hydrogen boost system. Figured it was worth a shot if I can get another 30-40% mileage off my gasoline engine. I hope to get 70 mpg when all is said and done. I have the 2003 Honda Civic Hybrid.

The system needs me to know where the O2 and MAP sensors are. The O2 sensor appears to be on the top of the exhaust system just behind the manifold (back side of the engine) but I have no idea where the MAP sensor is.

I also need a circuit that is 20-30 amps that will turn off with the Auto Stop. I was thinking of taping into the fuel pump power. The dealership suggests I tap into the fuse box and test the fuses for which system disconnects with the auto stop feature.

Can someone direct me to an engine schematic or explain where it is. I may have a mechanic do the work but would like to manage it myself if doable. Any suggestions would be appreciated.

Thanks for the help.

Jim

RickMN

Under no circumstances should you tap into the fuel pump circuit--unless you like replacing a very expensive pump. You're asking quite a bit for any of us to pony up 50 pages of electrical diagrams. Be a sport, spend $10 on a 1 week subscription to eautorepair.com and download all the diagrams you need.

We'll all be real interested to know if you get even a 5MPG increase. From everything I've read about this system, it takes more energy to make the hydrogen than it provides to the engine. But hey, we'd love to be surprised.

HydroHybrid

Thanks RickMN. Will do. I was an avid reader of VW Maintenance for the Complete Idiot back in the 70's. Kept an old VW running for years. I'll get the diagrams from the web site.

I was thinking yesterday after the post, that the better way would be to add a relay switch that would steal just a small amount of juice but shut off the Hydrogen generator when needed. Tapping into another circuit anywhere to pull 20-30 amps would certainly create a major shift in the cars circuitry.

Jim

HydroHybrid

I am running into problems getting results. I have the hydrogen generator installed.

The next step is to install a Potentiometer between the MAP sensor and the computer to reduce fool the computer into thinking it has a higher fuel:air ratio than it really has so the hydrogen can have a true impact on the system.

I found a MAP sensor on the firewall but it does not seem to have the effect described in the Hydrogen system.

Is their a second MAP sensor in the 2003 Civic Hybrid or a MAF sensor to really manages the signal?

Any help would be appreciated.

Jim

Galveston1

HydroHybrid, from what I am hearing the amp load will be more like 5. The trial I posted in the other thread was on a bone simple unit with no tweaking on anything. Keep in touch.

HydroHybrid

I will check the other thread...my amps are running at 20-25amp. I connected a relay switch using the fuel pump relay to manage the switch. The hydrogen cell is a six cell unit connected directly to the battery.

Jim

Galveston1

Hydro, how many square inches of gap do you have in the electrode? I assume it is a multi-plate arrangement? What is the size of your engine? As I learn more, I will share info.

HydroHybrid

I do not have plans for the unit I bought. I do have an internal diagram that I could send you if you send my your email address.

Galveston1

I can understand your frustration after spending big bucks and getting no results. Can I ask a couple of dumb questions? Have you made certain that the unit is actually producing gas? And this one is really weird, is there any possibility that you can use too much HHO? Is there an optimum amount for any given size engine, and more causes loss of effect? I ask because the installation that I know about only uses 5 stainless switch covers for electrodes and can't possibly produce nearly the amount of HHO that your unit produces, and it is on a somewhat larger engine. Just a thought.

HydroHybrid

good questions...
I actually thought about igniting the end of the tube to see if it was producing gas. That will burn is just the gas coming out of the tube. I may melt the end of the tube some but I have extra. As far as too much, I would hope the seller has done his homework....!!!


The small number of stainless steel plates explains the low amps. Have you talk with your pastor's son to see how his mileage is holding up? I would be curious if after several months what his thoughts are. I am talking with my friend...currently out of town.

Thanks..Jim