Re: O2 Sensor monitors

[steveb@newkla.kla.com (Steven Buchholz)]

> 
> We have designed one using the national chip and a 10 segment LED display. 
> Never got around to using that one though. I now have an Air/Fuel LED 
> bargraph which I bought from JC Whitney for around $30. It is made by 
> Cyberdyne and works fairly well. Comes in a VDO size round gauge housing 
> whose face is black until it is powered. It is simple to hook up, 3 
> wires12V, Gnd and O2 voltage. It is designed with the high impedance input 
> and it doesn't affect the O2 signal going to the ECU.
> 

Thanks for this tidbit ... guess I'll have to see about getting a JCW catalog.
Do you know if those Abt gauge extensions for the ur are still available?

> 
> >Glen, it sounds like you may have one of these doo-dads in your car.  What
> >sort of things do you notice while you drive?
> 
> I wanted one to watch and verify that I was running on the rich side when 
> the boost is cranked up. I now know I am in the rich range under boost and 
> have only seen it go into the lean range while crusing and idling.
>  -
> Dave Lawson  dlawson@ball.com
> 
> 

Sounds like it might be somewhat interesting ... I thought that the display 
would be pretty boring since the computer was trying to adjust the mixture 
so that the reading would be right at stoichiometirc except at WOT.

Steve Buchholz
s_buchho@kla.com