With the diesel prices going so crazy, and not wanting to give up all our trucks, we love, We have built a hydrogen cell and it seems to be making lots of hydrogen, BUT we can't seem to increase mpg more than 2-3 mpg. We have talked to several mechanics and they say the mass air flow sensors and the computer is keeping the truck from having anymore increase. We are pumping the hydrogen into the air chamber of the turbo. We get great power and you can definitely feel how much smoother and cleaner my truck run with it. Is anyone else doing any hydrogen testing? Or have any ideas on how to trick the computer?