yeah, If you look at other vids... people are using the scan gauge to read the rear o2's. When they test an efie, they watch the reading it gives and adjust it on the fly. I have seen what HHO does to o2 readings one the net... But I myself haven't seenit in person. Hence why I test everything first before I tell y'all about it. I don't mind being a test dummy, I just like to research as much as possible before I do field tests.
FYI I have found out My cell is not for everyone. My little brother wanted one for his 07 Dodge Caliber. I looked and looked and thought. There just wasn't allot of room under the hood. I might could hide it behind the bumper, I will try after Xmas because its parked until he returns from IRAQ.
