o2 and EGT questions

[Jody Shapiro]

>1. Do O2 sensors have a 'cusp' output where Vo decreases  as mixture
>goes from lean to stoich, and then increases as mixture becomes rich? Or
does it
>have a generally positive (or negative) slope, with a characteristic
>voltage at stoich?
>
>
>
>              ^   \        /                  
>              |    \      /                  
>              Vo    \    /     Cusp 
>                     \  /                    
>		      \/              
>				       
>                <-Lean ----Rich->
>
>                           /
>                 ^        /
>                 |       /
>                 Vo   - -    Slope
>                     /
>                    / 
>                   /
>

I'm not positive on this one, but I believe that the second one is correct...

-Jody