Quote Originally Posted by myoldyourgold View Post
There is no savings using HHO at idle. The savings will come by not using HHO at idle. Less load on the alternator. It is just that simple. It takes more fuel to make HHO less fuel when not making it. This engine has less torque at idle and makes up for it with more fuel. Why make it when you do not need to. By not making HHO at idle you add to the total savings. As for how much HHO to use you need to experiment. In larger engines with lots of low end torque it might not make much difference, but will make a difference if it has an O2 sensor.

to agree, now I understand.
but how I can do to stop the generator when you lift the throttle pedal?

pd-my engine has no 02 sensor