how do I read this chip?

[Len Sabatine]

Second reply ;  Try Generic 27512  , see if Csum verifies. I'm curious 
about 28 [F] 512
in your application BTW. If the wrong chip algorithm is selected = wacky 
dump or
no data read.
Len
Snip>>>>
able to do a checksum.  I have tried setting the pb10 to 27512,27c512,28f512,
>etc.  It seems to come up the least screwy (semi-repeatable checksums) when
>set to 28F512.  The actual chip itself (for my 93 8625 ECM) has a DA in block
>letters at the top,
>Snip >>
>DELCOWhat should my settings be, am I doing something wrong?  Is 
>construction of
>the adapter critical, please let me know.  Al, Jim, Carl, Bruce . . .anybody
>. . .  - any clues would be great.

----------------------------------------------------------------------------
To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
in the body of a message (not the subject) to majordomo at lists.diy-efi.org