How to build a HHO generator?

Mine works…check out this website.

go to their pics and the diagram to build one is under the dialex 100a section. there are 5 pictures there.

After reading the first response above I would like to say that I am in no way, shape, form, or fashion associated with trinity energies. They were just helpful and the ones that told me where to look on their site to build one. I requested to buy one from them just so we could see it before we built our own. Lots of people are skeptical…we were too. We paid a grand total of $102 (includes shipping and insurance) to get it here. Basically we figured we'd blown more on dinner out before so if it didn't work, so be it. We went in with a very open mind and were prepared to be let down but we weren't. I'm not going to make any money by referring you to their website. Also, my HHO generator is in my vehicle. If you live near TN you are welcome to come by and see it for yourself.

I will caution you that it is NOT maintenance free so just be prepared to spend about 10 minutes a week under your hood. Nothing major…just changing out your electrolyte mixture and water and making sure your electrodes are clean.

Do your own research. I got mine from them and drive a 2001 chevy suburban 2×4. I am currently getting 28 mpg. I got my first from them and then my husband built one for our 4-runner. We had never dealt with anything like this before so we wanted to see what we were getting ourselves into before we built one ourselves.

Yes there are scams out there but this one does work very well. Oh, and my suburban is fuel injected so yes, it will work on your Jetta.

Make sure your Jetta isn't still under warranty. It will most likely void it if it is.

If you do want to build one, you are free to e-mail me to find out where to get some the parts. You can get them all at hardware stores and auto parts stores but there was one part that was in a weird section at Lowes. It cost us a grand total of $30 to make our own.
Hope I gave you some insight.

It can be difficult to find a free plan that will work well, but they are out there. One source is , you can also google free plans hho generator. There are several resources on utube as well. Do your research before building one because some designs do not work well. The theory is strong and works, just be informed.
Since 1834 there have been over 200 patents on HHO generators, in Europe, Australia, and in the US there are many large companies that use these, not just for fleet cars but for big rigs, ferries, buses, etc. If it were a scam these large companies would not be using the device paying millions to convert to HHO hybrid. There have been several people who have thier car run exclusively on HHO. In the 1940's (or 30's can't remember) the Pogue carborator was sold to a car manufacturer, the design ran a car off 100% tap water.
It will work on every petro/LPG/diesel vehicle including your Jetta. Building the basic device is fairly simple, the kind of electrolyte you use and the type of plates you use will effect your outcome. Newer vehicles with oxy sensors and a computer will need to be modified for the air mix or you'll actually loose mileage. Simple solution but needed for optimum mpg gain. Find a plan that addresses fuel injection vehicles (in Europe they have done Jetta's).
Good luck and keep in mind that you may have to make some minor changes etc. to get the best results for your car. Become fully educated so you'll know how to increase MPG's using the generator.

Good luck…