V6 has 2 NB O2 Sensors. Do I need 2 WB O2 Sensors to tune?

[Chuff]

Hi All,

Hope this is the right section for this post. If not, could moderator please move.

As the title says. I have a VT V6 Commodore with an oxygen sensor on each bank of the engine. Do I need 2 WB O2 sensors to tune it, or can I simply use a single WB and how?

Thanks.

[delcowizzid]

jus get another bung welded in before the cat and fit the wideband in there

[Chuff]

Thanks delcowizzid.

So what do I do with the existing O2 sensors? Just leave then in place & wired up, and, from what I've read elsewhere on this forum, I plug the WB into the PCM onto pin B12 once I've installed the Real Time Modded Factory Bin. Is this correct?

Thanks.

[Holden202T]

yeah that should be right, i'd have to look at a VT loom to confirm, but i think that was the pin from memory, injector voltage monitor line.

depending on the config of the wideband you you use you might need to adjust the scaling of it for min and max readings to match, but it should all be in here: https://pcmhacking.net/forums/viewtopic.php?f=27&t=613

[charlay86]

There are spare 0-5v inputs on the enhanced factory bins, so you don't need to use the injector monitor line (it has lower resolution because it is a 0-25v input).
you might need to add another pin to your harness to use this input though.