Quote:
Originally Posted by cfg83
Dr. Jerryrigger -
Does SPI increase how much oxygen the oxygen sensor sees in the exhaust?
CarloSW2
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It shouldn't, if anything it should see less.
The thing with HHO and O2 is a little questionable. I've never found a satisfying answer to; what is really going on. Theoretically you have enough H to make a complete burn of the HHO so it shouldn't change anything.
Also if your'e really burning fuel that would normally burn in the cat, than you should see less O2.
I've heard people claim that the O2 sensor reads the H2O as O2, but I can fined no mention of this from water injection guys, so I'm pretty sure this is bogus (also the amount of H2O in normal exhaust makes this one rather questionable)
I think the real issue it that you can get away with a leaner burn with HHO, and that is where you see real FE improvements.