Originally Posted by
pimpo
In my case, when I ran my drycell connected to the Intake manifold vacuum, the generation was apparently enormous, but also it must have engulfed all to the engine, because I ended up after a 110 mile trip without water in the reservoir and the bubbler was dry. Vacuum produces a boil over in the electrolisis I believe. I removed the connection and put it back to the other side of the throttle body, in the intake very close to th butterfly. I was desperate also because lack of gains with the HHO, Volo chip does not work either, at least with my scion xb 2004 which has the same engine/ECU as a Yaris or prius or echo of that year