EPROM

[rr]

GM commonly uses a MPH * 3.2 term. Might get you closer.

BobR.


Louis Baiani wrote:

> Okay all I can think is to divide the values by 3.  That relatively makes it
> make sense.  I think it's kick in speed above out speed, for 4th gear on/off -
> which makes 4 values....
>
> Louis
>
> Louis Baiani wrote:
>
> > Okay, anyone understand changes made to the TCC lockup values on a
> > 7747?  I suppose for a 6026 no one really understands how it works.
> >
> > Below is a table of values that have changed from the original stock
> > calibrator to a replacement stock calibrator which fixes TCC lockup
> > problems.  With the contents in the first colum, TCC lockup occured in
> > 2nd gear (noticed if you held it in 2nd).  It engaged at around 16-18
> > MPH.  In 3rd, the TCC engages right away - (perhaps speed set too low).
> > Same with 4th gear.
> >
> > Now, with the contents in the 2nd column, TCC lockup no longer occurs in
> > 2nd, comes on at 42-43 MPH in 3rd, and similar for 4th (or a bit higher,
> > would have to test again).
> >
> > The 3rd column is values from an ADS powerchip.  The powerchip has TCC
> > modifications to it as well - the chip hasn't been tested yet.
> >
> > So can anyone figure out what those values represent, perhaps comparing
> > how they work on a newer ECM?
> >
> > Thanks,
> >
> > Louis
> >
> >  001E4        45        131         96
> >  001E5        42        128         89
> >  001F8        80        131        128
> >  001F9        74        128        120
> >
> > ----------------------------------------------------------------------------

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