O2 sensor idea

[Espen Hilde]

Great!
how about trowing in a map sensor and rpm so we can set the targets for 
what the 02 sensor should look for, and give input to the GM computer
to adjust the block learn cells to our target.
Just a Idee , I dont have the slightest idee how it could be solved....:-)
Espen Hilde 

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> From: Roger Heflin   <rah at horizon.hit.net>
> To: diy_efi at efi332.eng.ohio-state.edu
> Subject: O2 sensor idea
> Date: 19. april 1999 16:18
> 
> 
> Ok, so each O2 sensor varies greatly (even from the same
> manufacturer), so what about taking a wide ratio O2 sensor, and
> rigging a circuit in front of it to make the wide ratio look like a
> normal O2 sensor to the computer?   This would allow the computer to
> work correctly, and also mean that we would be able to properly (and
> reliably) use the O2 sensor for tuning?   
> 
> I would thing the circuit would probably need a pic with a D/A and a
> A/D and do a table lookup to properly make a wide ratio look like a
> normal O2 sensor.  
> 
>  Thoughs/Ideas?    
> 
> 
> 			Roger