If this is in the wrong spot sorry mods.
For all you guys running a wideband what does it read at idle or just cruising with your foot off the gas?

 

Idle & foot off the gas will give you two different readings. Cruising in gear, with foot off gas will read 21.0 AFR, cruising along out of gear with no gas, will usually fluctuate between 14.5-15.2, as the same with idle.

 

+1

and at idle parked, 14.5 to 15.2
cruising, the same
cruising then letting off, it runs off the charts, no fuel to read.

 

Reason i asked was that this is the only place i could think of to get info on something like this.
I actually own a ralliart that i just turboed an got running tonite an mine reads17.8 ish at idle an off the charts when i let off the gas. During boost im around 12 which i know is good i just didnt know what i was supposed to be reading at idle an didnt want to hurt my car. This is the first wideband ive owned so im learning at this...

 

Idle can be as lean as you want before it lean misfires. Richen it up just enough to provide reliable combustion. On cars with a narrowband O2 sensor controlling fuel (stock) however, you're pretty much stuck at 14.7:1 unless you've got the ECU maxed out on it's trims.

 

go a little richer at WOT Man. atleast 11's on pumpgas.

Also, Is your w/b new or used? and sometimes they have to heat up before reading correctly

 

Not sure what exhaust you have but any leak before the wideband can skew readings at idle...ie. a gasketless exhaust will leak air in before the wideband and read off at idle(16-17.0 instead of 14.7) and then read normal at cruise and WOT.