Can somebody explain to me how fuel injection?

Question

works for alternative fuels, how does hydrogen cell technology work. I am trying to replace fuel injection of gasoline with fuel injection of hho gas. Any help greatly appreciated.

Answer 1

HHO "works" by introducing hydrogen and oxygen into the air intake of the engine.  The jury is out as to whether it works or not.  It can't replace gasoline, it is supposed to improve fuel economy.  You should not do this unless you are willing to have your engine fail because of hydrogen embrittlement.

Hydrogen fuel cells are a completely different technology.  They are batteries that work by running hydrogen through them and combining it with oxygen instead of reacting acids and metals.  A fuel cell car is an electric car that has fuel cells and hydrogen tanks instead of chemical batteries.