Reversing the '8625

peter paul fenske ffnsp955 at bcit.bc.ca
Sat Sep 5 06:20:16 GMT 1998


Hi Mike and all

Before someone gets serious bout this thing
can someone confirm the BBNT cal as being for
the 8625 PCM????

I have it as a cal for the
 16156930 ECM

Of course could be wrong

:peter

At 10:45 AM 9/4/98 -0400, you wrote:
>Hi all,
> 
>I've started the process of reversing the cal from an '8625 TBI PCM.  
>This is from a '93 4.3L CPI "W" engine code Olds Bravada (same as 
>Blazer, etc).  The PCM also controls the 4L60E transmission.  This 
>same PCM is also used on some 5.7L TBI trucks of the '93-'94 time 
>frame.
> 
>I've sent the file to a couple of list elders already, but thought that I 
>should let the general list know in case someone else is interested 
>whom I don't know about.
> 
>At any time you may find the reversed cal at:
>http://www.emi.net/~mpitts/Bbnt.asm
> 
>I will update this file periodically as I make progress, which will no 
>doubt be slow since I am *not* very good with assembler level code.  
>I am sure this will be littered with bugs, but it's all that I have.  If 
>you find any in the code I would want to know about, please let 
>me know.  I can be reached at: mailto:mpitts at emi.net
> 
>The ultimate goal is to find the transmission, fueling and spark 
>parameters so I can turbocharge the engine and alter the shifting 
>characteristics.  This may be of interest to those who would want 
>to add a supercharger to this engine as well.
> 
>Thanks,
>-Mike
> 
>
>




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