"CALPAK" chips
07-30-2001, 10:01 AM
#1
Racer
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In addition to the EPROM, there are two chips in the "CALPAK" of my 89 ECM. Does anyone know what the function and/or generic part number of these two chips is?
07-30-2001, 10:04 AM
#3
Le Mans Master
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they are resistor networks. They are proprietary parts made for these memcals. I work for an electronics distributor and my product dept couldn't get a cross reference for these. They are made for GM and are not a standard part number on them. They probably only cost a few pennies, but nobody seems to be able to duplicate them at home.
07-30-2001, 10:07 AM
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Le Mans Master
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oh, forgot to mention what they do! The resistor networks feed the ECM with info like cylinder select (8 or 6 cylinder) and have some basic 'limp home mode' info in case the eprom doesn't work for some reason. since alot of GM ecm's are used in a variety of vehicles, the memcal chip is the only thing that makes the Corvette ECM different than a Chevette ECM! (I don't think a chevette ever used the same ecm than a vette, but you get the point!)
