AKFM in 730

[Ludis Langens]

Programmer wrote:
> 
> Shouldn't this be a 27C128 chip on this AKFM Memcal ??

GM often used 27C256's where a 27C128 ought to have been.  These '256's
invariably have funny markings.  They might have been chips with a bad
bit in the unused (lower) half.  Alternately, the '128 size isn't/wasn't
as common as the '256.  GM may have had trouble getting '128's which can
handle a wiggling ~PGM pin (it's connected to the MPU's A14 in the '165
ECM.)

-- 
Ludis Langens                               ludis (at) cruzers (dot) com
Mac, Fiero, & engine controller goodies:  http://www.cruzers.com/~ludis/


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