Looking for a date for the gmecm eeprom

[Scot Sealander]

Shannen Durphey wrote:
 
> Has anyone done any work with eeprom applications?  I know the 92-94
> Cavalier 2.2l is one of these. 

I bought a couple of those Cavalier ECMs and read them out through 
the ALDL.  They have no PROM at all in these things, and are set up 
as a single chip controller.   A really "inexpensive" ECM, one could 
say.  But, they spit out everything they had in them, both code in 
ROM and the EEPROM area. 


> I'm interested in reprogramming one of these ecm's through the ALDL, 
> as GM does, and I'm looking for software to do it.

That I don't have.  But I assume it could be written fairly easily.  I 
don't *think* you can screw it up, as the code is all in ROM.  Just the
EEPROM can be written.

Got a GM tool that can reprogram it?  Just record what it does with a 
monitor like g-car.  

Scot Sealander
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