I am trying to create a definition file for an ECM that is not on your list. The data stream I am working with is an 8192 baud stream from a Delphi MEFI 4 controller running on a sand rail with a Corvette LS6 engine on it. I was able to see what looked like proper chatter from EFILive V4 using the GM274, GM163, and 95 Pontiac vin K definition files, but the charts and graphs had meaningless data in them. The other definition files did not seem to allow any useful chatter to be seen.

I logged some data with Carbytes V2 using the Holden_VS_V8.ald definition file (the Lotus_Carlton one did not seem to provide any data). The first part of the log file from Carbytes V2 looks like this:

15:40:08.804,66,98,0,0,0,0,90,128,0,0,118,0,135,7, 16,110
15:40:09.204,66,98,0,0,0,0,90,128,0,0,118,0,136,7, 16,109
15:40:09.214,240,86,244,198
15:40:09.224,66,98,0,0,0,0,90,128,0,0,118,1,137,7, 16,107
15:40:09.234,66,98,0,0,0,0,90,128,0,0,118,255,138, 7,16,108
15:40:09.274,240,86,244,198
15:40:09.314,66,98,0,0,0,0,90,128,0,0,118,0,133,7, 16,112
15:40:09.424,
15:40:09.434,66,98,0,0,0,0,90,128,0,0,118,167,134, 7,16,200
15:40:09.525,240,86,244,198
15:40:09.565,66,98,0,0,0,0,90,128,0,0,118,0,135,7, 16,110
15:40:09.675,
15:40:09.695,66,98,0,0,0,0,90,128,0,0,118,0,136,7, 16,109
15:40:09.775,240,86,244,198
15:40:09.815,66,98,0,0,0,0,90,128,0,0,118,1,137,7, 16,107
15:40:09.935,
15:40:09.945,66,98,0,0,0,0,90,128,0,0,118,255,138, 7,16,108
15:40:10.035,240,86,244,198
15:40:10.075,66,98,0,0,0,0,90,128,0,0,118,0,133,7, 16,112
15:40:10.186,
15:40:10.196,66,98,0,0,0,0,90,128,0,0,118,167,134, 7,16,200
15:40:10.286,240,86,244,198
15:40:10.326,66,98,0,0,0,0,90,128,0,0,118,0,135,7, 16,110
15:40:10.446,
15:40:10.456,66,98,0,0,0,0,90,128,0,0,118,0,136,7, 16,109
15:40:10.536,240,86,244,198
15:40:10.576,66,98,0,0,0,0,90,128,0,0,118,1,137,7, 16,107
15:40:10.696,

I am really at a lose here as to what to do to properly log data from this MEFI ECM. I'd like to be able to program it also. I've read various stuff on disassembling the binary and trying to create a hack file to create a definition from it, but this sounds like a long process.

How do I go about creating a definition file for this MEFI ECM?
How do I properly dump the bin from this ECM?

Thanks much!