where are people locating the second o2 sensor on the single turbo log setups? (similar to KB Racing)

if i put both on the crossover, wont they be mainly reading only one bank?
i have a third o2 in my down pipe for my wideband...

this is my hot side,

 

Mine is right below the turbo flange on the log. It is a kbracing log so I am sure a lot of people run it like that.

 

That's how mine is, also a KB kit..

 

There's no way to read left and right bank with a single log setup. U loose left and right bank. But the good news is reads close enough and it'll work if u put the o2 where they said above or in the downpipe near the firewall area.

 

ok i understand where you are talking about in the log..
would it give you in innacurate reading to have one in the crossover and one in the downpipe(after the turbo) i just wanna make sure i do this right, i dont wanna have tuning nightmare on my hands...

 

In theory it should give you an inaccurate reading regardless of where you put them, but like Nelson said if you put it the bung in the log near your wastegate it will work well enough to keep your trims from jumping around in closed loop. It might work as well in the down pipe, but I wouldn't put it there. Save that for your wideband.

 

Do you guys always get rich codes popping up even when your wide band reads normal?

 

Negative, ghost rider. Sure your WB isn't dipping low at cruise?

 

Nah it only does it after my truck sits for a few days. Then I drive my truck and when I am cruising at 30-40mph for a few minutes it'll pop up. When I clear it it goes away for a few days.

 

Your o2 sensor heater my be getting lazy