help to install an HHO device into a VW Golf 3

[hartiberlin]

Hello to all, who have already tried and installed an HHO electrolizer into a car with a fuel injection system
I want to install an HHO device into my old Volkswagen Golf 3 car.

It is an automatic transmission car with 75 PS and a Bosch Mono Jetronic fuel injection system.


Since I am not such a "autonut builder",
but want to test it , how much really such a HHO Elektrolyzer will help to reduce the fuel usage, I would like  to inquire whether someone knows,
where one introduces best the detonating gas with a Golf3, without one must change anything at the oxygen sensor.


I telephoned yesterday with a friend, who is been versed with cars and he meant, I would have in my VW Golf 3 a Bosch mono Jetronic fuel injection system...

So, how can one build it best, in order to introduce the HHO gas there?

Generally I have also have one in principle question in addition...

How is the fuel usage to become lower, if the oxygen sensor with electronics measures the necessary gasoline quantity and afterwards the injection gasoline controls?

If one introduces the HHO gas thus behind the oxygen sensor, thus directly at the aspirating connecting piece then, then the engine gets still exactly the same much gasoline, since we did not change the oxygen sensor. What does  then the additional HHO do ?

Can one drive then  with lower number of revolutions with more power ?

Actually one would have to "hack" also the oxygen sensor electronics, so that there would be fewer gasolines injected, right ...?

Thus everything looks very complicated with fuel injection systems and therefore I ask myself whether it will be at all beneficial
to try it with fuel injection systems in an engine?

Thank you very much  in advance.

Regards, Stefan.

[WyTTraven]

hello hartiberlin!

first off I would like to say that this is a tremendous place for information!! This is my first post although I have been on the boards absorbing all the information for some time.
 
  You are absolutely correct in your assumption that you have to "fool" the cars computer because of  the oxygen sensor. If you do not manipulate the voltage output from the sensor to the computer the car will sense a lean condition from the HHO gas and actually try to compensate by adding more fuel. I have noticed many people who have added an electrolyzer to thier vehicle without modification to the oxygen sensor output and still claim an improvement in fuel consumption... It is possible, but to really benefit from the HHO it is necessary to change the sensor output.

   due to HHOs powerful burn and the fact that it can effectively "boost octane" so to speak,  it should be acceptable to run the engine leaner than the stoichiometric ratio of 14.7 to 1 that they require..

if you look on youtube ZeroFossilFuels made what is called an "EFIE" to manipulate the output of his oxygen sensor. It appears to not be very complicated. Im sure he has schematics somewhere for it 

   I hope this helps somewhat...

good day!

[readyakira]

You will also want to check here for his post about it.  I think I remember him saying that there is some errors in the method.  On that note I had a few questions and maybe zero will post more here about it.  I have 3 O2 sensors in my truck 1 off each exhaust manifold and one off the catylitic converter.  I was wondering what I may have to do to adjust those.  I do have a program from www.digimoto.com that monitors the computer and puts up a nice graphical interface so you can see exactly what the o2 sensors are reading. the program was relatively inexpensive compared to it's versitality.  I will try to get maybe some video of it in action monitoring the o2 sensors.

[WyTTraven]

the oxygen sensors that come off the manifolds are the ones that you have to override. The sensor behind the catalytic is just a secondary to basically measure the effectiveness of the converter.

(thats generally how it works anyway.. it might be a little different depending on the make of the vehicle)

*edit* there is a company called www.hydrogen-boost.com that sells an electronic oxygen sensor overide has part of a complete effenciency package.

the basis of the circut is...

the o2 sensor outputs from 0 to 1 volt depending on the air/fuel ratio( 0 too lean, 1 too rich). the easiest way to find the necessary voltage to tell the computer it is at the 14.7 to 1 stoich. ratio is to wait for the vehicle to warm up and then measure the voltage coming from the 02 sensor. Once you have that reading its just a matter of designing a simple circut that will output that voltage. If you really wanted to get fancy you could run a 2 way switch with the newly created circut and a air/fuel ratio gauge. wire the switch up so the circut sends the output to the computer but the o2 sensor sends its voltage to the gauge. that way you could see the actual air/fuel ratio but still be compensated by the new circut inputing the voltage to the computer.. ( i hope this is making sense.. sometimes I cant perfectly describe my ideas.. please bare with me)

[readyakira]

Biggest part I worry about with this is under no load an during load the o2 sensor voltage will vary?  Or since the hho would be a constant, you just have to offset for that differnece.