Checksum questions

[DC Smith]

heh, I shoulda figured. There's probably a snowmobile with it in
location 3fcd. I should have been more specific that what I stated
applied to a 148 and it's cousins. Course, if your'e figuring check
sums, I would hope you know where your puter keeps it. :) Take care.

Ross Myers wrote:
> 
> >DC Smith wrote:
> >>
> >> The checksum is pretty easy to come up with. Just zero out the first
> >> two bytes in the prom, then read it off the edit program, and insert it
> >> into the first two locations.
> >
> >...but only for certain C3 ECMs.  1227747's are different.  And P4's are
> >different yet again.
> >
> >--
> >Ludis Langens                               ludis (at) cruzers (dot) com
> >Mac, Fiero, & engine controller goodies:  http://www.cruzers.com/~ludis/
> 
> And then there's more, in certain Holden Memcals, PCM checks between $5000 -
> $FFFF, but the C.S Value is at $6006,$6007, you must then subtract between
> $6000 - $6007.
> 
> Ross Myers
> 
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Dan Smith      84 Regal   11.841 at 115.09     GSCA# 1459
St.Charles, Missouri 
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