O2 sensor

[Gregory A. Parmer]

On Wed, 10 Mar 1999 cwagner at info2000.net wrote:
> I am currently running a EFI setup using a GM TBI unit and a 7747
> computer.  I purchased a chip from Howell for a 258 cube. inch 
>...
> computer doesn't set a code for a rich mixture.  I drove around with 
> the sensor disconnected and never got a code for a lean O2 sensor 
> reading which seemed weird.  Does anybody have any ideas?

What are the chances that Howell disabled the O2 to "ease" the
conversion?  Doesn't 4.3L come out to about 258ci?  There are a 
couple of BINs on the web/ftp site (one auto, one standard) for
the 4.3L.  Compare the price of the chip from Howell to the cost
of an eprom burner.  :)  At least with the OEM BIN you know whatcha 
got.

Also..have you got the VSS hooked up? It made a big difference for me.

-greg