ok guys, wtf with this HPtuners program?
i've come to the conclusion that i need a WB 02 sensor. what's the deal with these things? do i pull one narrowband out and replace with the wideband? do i weld in another bung and use it? is this thing temporary on an efi car? do i only use the wideband a couple times plugged into the EIO harness?
i had to weld a bung into one of the chevelle collectors awhile back when i checked the tune on the dyno, but i've never used one on an EFI car, OR interfaced into a diagnostic harness. SHIT! the more i think about it the more confused i get.
i have a pretty square understanding of the hptuners program, but the integrated Wideband sensor seems a bit more obscure.
also, which WB should i buy? are there any ups and downs with these or is a wideband a wideband?
i've looked almost everywhere, and cannot find much more than matters of opinion, and scattered useful information. thanks in advance!