Today I fired up revision 2 of my HHO generator. It works great. I tested the system under vacuum by plugging the output tube into the PCV air intake line into the intake manifold and wow it really increased production.
I was also able to tweak the bubbler cap setting for the air intake. So the next step, I setup an old kool-aid pitcher with bungie cords for a place to sit the unit, then I wired it up. I hooked a vacuum T junction up to the intake line from the PCV and drilled a hole and installed another hose insert on the air plenum on the clean side of the filter. The PCV line will draw HHO during idle and more so during engine load and the air filter line will draw during driving.
Then I took it out for a drive and WOW it had a lot more performance from a stop and during acceleration at speed. The car shifted way smoother and more even. It idled smoother and quieter and the whole engine seemed to run way smoother.
The Check Engine light came on, but that was to be expected. The code it gave was that the O2 sensor was reading a problem and cylinder 1 and 2 both had a misfire detected in it. The O2 sensor misread was to be expected as the exhaust temp drops the O2 sensor will think the car's not getting enough air and throw the code. It will also dump more fuel into the mix.
So the next step is to build my O2 sensor confuser so I can adjust it's voltage by hand and make it think it's not a lean mix going thru the engine and then my MPG should go thru the roof.
The only thing I didnt count on was the misfire reading in cylinders 1 and 2. Hopefully that's just a misread by the ECM since it was getting bad data from the O2 sensor.
I was talking to a guy at our local Advance Auto Parts and he built the same unit I did and put it on his truck and he just unhooked his O2 sensor and he's getting 8 to 10 mpg more out of his struck. With the O2 hooked up and effectively tricked you should see a much larger gain.