Dummy Sensors / Testing

[CSH-HQ]

As I understand it;
The 89 with the VSS Buffer was a digitial dash, and the normal cars used the 
regular, optical 2000 ppm.  90 they went to the 730 which had the option of 
both.  But, as we get newer, the signals are proceded with "finer" 
resolution,so, it was a first step to greater resolution.
Grumpy



>I may be asking the obvious, but why not use a VSS which generates a
>2000ppm output, eliminating the buffer?
>
>I realize GM isn't known for logical actions, but still....  ;^>
>
>At 02:14 AM 10/16/99 -0800, you wrote:
>>> 4.  On a '89 Firebird TPI schematic I have, the VSS input ("Speed Input")
>>> is shown going to a "VSS Buffer".  What's this?
>>
>>The "VSS Buffer" converts the 4000 ppm magnetic pickup signal into an
>>open collector output at 2000 ppm.
>> 
>>Ludis Langens                               ludis (at) cruzers (dot) com
>
>--> Bob Valentine
>--> bob at tecmark.com
>