Installing your "Volo FS2-HHO Edition, or FS3 or VP12 Circuit"

Simply follow the paper booklet that came in the Volo circuit box.

Finding the right wiring protocol for your car or truck.


OBD II • Wiring Protocol will vary depending on vehicle manufacturer and year.
This tool allows you to easily identify your vehicle's protocol and
print a wiring diagram for your vehicle.

Locate your OBD-II port and note which pins are populated. See diagram
If the tool fails to launch, make sure you have the latest version of Adobe Flash Player.
This wiring protocol is for the FS2 HHO-Edition and FS3 (no hho or fuel vaporizer)

Volo Install Video • Download Volo v7.4+ 2013

Volo FS2 + HHO cell RESULTS & Trouble shooting tips.

Buy a Volo FS2 , FS3 or the VP12 circuit

Find the Volo for my car or truck

"DS2-HHO-Edition" (downloadable .pdf file)

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Hydrogen Garage LLC • California • USA