Swapping Computers
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Joined: Aug 2004
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Swapping Computers
Will a computer from an 87 or 88 work in an 86? Mine is an early 86 and I have been told that there is a problem communicating with the early ECM. I can't make any of the scan programs like winaldl or datamaster work with. Has something to do with the baud rate.
Here is what I was told:
WinALDL is a 160 baud program. That means it collects data from the slow
ECMs. The ECM found in the 86 Corvette (the 1227165) is a dual baud rate
ECM - it talks at either 160 baud or 8192 baud. From what a few
customers with those early 86 Corvettes have described to me, I'm not
sure that GM incorporated the ability to switch over in to 8192 baud
mode with those ECMs. It's like the chip doesn't support it. Now, if
you're running an aftermarket chip (or thinking about burning your own),
then there's a good chance that your ECM will talk at 8192 baud - which
would allow you to run Datamaster. It's easy to change to a newer chip
image if you get a custom chip or burn your own. There are plenty of
chip images available in the GMECM .bin file archives.
Here is what I was told:
WinALDL is a 160 baud program. That means it collects data from the slow
ECMs. The ECM found in the 86 Corvette (the 1227165) is a dual baud rate
ECM - it talks at either 160 baud or 8192 baud. From what a few
customers with those early 86 Corvettes have described to me, I'm not
sure that GM incorporated the ability to switch over in to 8192 baud
mode with those ECMs. It's like the chip doesn't support it. Now, if
you're running an aftermarket chip (or thinking about burning your own),
then there's a good chance that your ECM will talk at 8192 baud - which
would allow you to run Datamaster. It's easy to change to a newer chip
image if you get a custom chip or burn your own. There are plenty of
chip images available in the GMECM .bin file archives.
Last edited by lefoy84; Oct 1, 2006 at 02:32 PM.
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Joined: Jul 2004
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Originally Posted by lefoy84
Will a computer from an 87 or 88 work in an 86? Mine is an early 86 and I have been told that there is a problem communicating with the early ECM. I can't make any of the scan programs like winaldl or datamaster work with. Has something to do with the baud rate.
Here is what I was told:
WinALDL is a 160 baud program. That means it collects data from the slow
ECMs. The ECM found in the 86 Corvette (the 1227165) is a dual baud rate
ECM - it talks at either 160 baud or 8192 baud. From what a few
customers with those early 86 Corvettes have described to me, I'm not
sure that GM incorporated the ability to switch over in to 8192 baud
mode with those ECMs. It's like the chip doesn't support it. Now, if
you're running an aftermarket chip (or thinking about burning your own),
then there's a good chance that your ECM will talk at 8192 baud - which
would allow you to run Datamaster. It's easy to change to a newer chip
image if you get a custom chip or burn your own. There are plenty of
chip images available in the GMECM .bin file archives.
Here is what I was told:
WinALDL is a 160 baud program. That means it collects data from the slow
ECMs. The ECM found in the 86 Corvette (the 1227165) is a dual baud rate
ECM - it talks at either 160 baud or 8192 baud. From what a few
customers with those early 86 Corvettes have described to me, I'm not
sure that GM incorporated the ability to switch over in to 8192 baud
mode with those ECMs. It's like the chip doesn't support it. Now, if
you're running an aftermarket chip (or thinking about burning your own),
then there's a good chance that your ECM will talk at 8192 baud - which
would allow you to run Datamaster. It's easy to change to a newer chip
image if you get a custom chip or burn your own. There are plenty of
chip images available in the GMECM .bin file archives.
