I'm going to get a wideband this week - done.
however, your 'calibration procedure' you speak of... wouldn't work for me - under wot, it's in lean, under engine braking, in the lean, constant throttle, in the lean, tip out/tip in, stoich - only time I get rich is when the circuit is open lol. this is why I was asking if the circuit for the rear o2 goes high when it goes bad - because it always wants to hang out in the lean state. (and although it has been stated over and over again that these things are useless, it still scares the **** out of me when it's in the lean portion damn near all the time... I wouldn't think this would be correct)
Can someone please clarify and put me at ease here - if the front o2 is reading good values, but the rear is not, is it safe to say I'll be alright and maybe even replace the rear o2? also, I pulled the passenger side spark plugs to check how they were running, and they were a light carmely brown - I've raced snowmobiles and performance bikes for years, and this tells me i'm ok - but the o2 sensor is getting to me...