ALDL, again

ECMnut at aol.com ECMnut at aol.com
Wed Mar 3 03:53:35 GMT 1999


Allow me;
 GMC Syclone ECM, 1227749, 8192 baud, BC code is AYBM-4052 
I have the same .
HTH  Mike V

> Most likely you are unaware that GM has around a hundred different diag data
>  standards, There are four different data xmission standards, including OBD
>  II. perhaps is you stated your needs ..... ECM P/N, and or broadcast code
>  ...
>  Ward
>  
>  -----Original Message-----
>  From: owner-diy_efi at efi332.eng.ohio-state.edu
>  [mailto:owner-diy_efi at efi332.eng.ohio-state.edu]On Behalf Of Barry
>  Tisdale
>  Sent: Monday, March 01, 1999 7:23 PM
>  To: diy_efi at efi332.eng.ohio-state.edu
>  Subject: ALDL, again
>  
>  
>  Still working on the ALDL / PC thing.  I've gotten *several* copies of the
>  GM paper on the diagnostic link; all are probably from the same source, way
>  back when, as they all contain the same typos and inaccuracies.
>  
>  Has anyone actually 'decoded' the actual data, i.e., converted the raw data
>  into meaningful information?  Some of the calcs given in the GM paper are
>  just plain wrong.  Lots of data acronyms have no references elsewhere in
the
>  paper; I can only guess @ what's intended.  Some are obvious, many are
>  cryptic.
>  
>  Anybody gone through this?  I'd like to help / collaborate w/ anyone on
>  this; hardware to get the data from ALDL to COM port is easy, works well.
>  Software to capture & log the data doesn't require a genius (after all, I
>  did it in QuickBasic).  Trouble is, "what do it all mean..."?
>  
>  Any help *very* gladly accepted - thanks - Barry
>  



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