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[Ward]

I donlt think the old ECM's did much of anything. As David indicated, later
ECM's did in fact try to usie the stratagy he described. Remember the ECm
you relating to is about 15-18 years old,(design wise).

Ward

On Thu, 23 Sep 1999 12:34:46 -0400, David Cooley wrote:

> At 10:57 AM 9/23/1999 -0500, you wrote:
> >Can anyone with certainty explain the fuel selection in the syty (749)
code.
> >Or any other gm bin.
> >If it fails the "test" does it just retard the timing x degrees
> 
> 
> On my old 95 LeSabre 3800 V6, it had a low octane timing table and a high

> octane table...  The test would determine which table it used, and if it 
> used the low table, it used a recovery function to "migrate" the timing 
> towards the high table.  The test ran all the time as well so if the 
> conditions were met it would revert to the high table.
> 
> ===========================================================
> David Cooley N5XMT Internet: N5XMT at bellsouth.net
> Packet: N5XMT at KQ4LO.#INT.NC.USA.NA T.A.P.R. Member #7068
> We are Borg... Prepare to be assimilated!
> ===========================================================
> 





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