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 on a pieve of paper, then come back to this page. Wave your mouse over the numbers below and click on them.
If the tool fails to launch, make sure you have the latest version of Adobe Flash Player.
This wiring proptcol is for the FS2 and DS2 HHO-edition and VP11
Even though the OBD II port plug seems like a great idea. DO NOT USE THEM!
The owner of Volo says NOT to use the plugs. The Volo circuits are all permanent installations.
The plugs make it too easy to un-plug and plug in the volo, making the volo un affected and no MPG gains
No masking of the HHO you may be introducing into your air intake. DO NOT USE THEM!