1) If I bought/had a Bosch 17025 or 17123 wideband 02 sensor (LSU 4.9 5-wire), could I connect that to any random wideband controller (sold new on ebay)?
2) My LS powered car has 2 narrowband 02's before the cats. Where should I mount the wideband (and narrowbands)?
3) Is it 100% okay to just have 1 wideband 02 sensor hooked up (along with the 2 narrowband 02's), or would 2 be better?