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Duramax 6.6L
December 14th, 2009, 02:35 PM
I am going to be working on 1999 Cadilac Deville. Does anyone know what model computer is in that vehicle? Does EFI work on it also?
GMPX
December 15th, 2009, 10:07 AM
It's a Siemens PCM, we don't support them.
Check out this thread -
http://forum.efilive.com/showthread.php?t=7689&highlight=Northstar

Cheers,
Ross
CalEditor
December 16th, 2009, 03:06 AM
The 99 PCM is a Delco. It looks like an old 97 LS1 PCM. It uses 2 Mot CPU's and 4 small memory chips and a knock module.

I can write this, but I can't read it yet. :bad:

http://i224.photobucket.com/albums/dd25/AJxtcman/PCM%20Stuff/PCM%20types/HPIM0252.jpg

http://i224.photobucket.com/albums/dd25/AJxtcman/PCM%20Stuff/PCM%20types/4848-1.jpg
GMPX
December 16th, 2009, 11:18 AM
Wow, is that thing still HC11 based or is the main CPU on the other PCB? This is old 16bit stuff in there.
CalEditor
December 16th, 2009, 11:34 AM
Hey I am in Rock Hill SC now and I have my other camera now and I can take pictures now. My old camera got broke by a valet attendant in Chicago.

I will go pop some clean pictures like the one above.
CalEditor
December 16th, 2009, 12:06 PM
the old Delco Chip isn't always a Delco Chip. I think on different year PCM's it's a Mot

http://i224.photobucket.com/albums/dd25/AJxtcman/PCM%20Stuff/PCM%20types/HPIM1553.jpg

http://i224.photobucket.com/albums/dd25/AJxtcman/PCM%20Stuff/PCM%20types/HPIM1554.jpg

BTW it is nice to have a camera without a broken screen :rockon:
GMPX
December 16th, 2009, 02:35 PM
the old Delco Chip isn't always a Delco Chip. I think on different year PCM's it's a MotCorrect, any chip that has the number '185' on it is a Motorola sourced part, anything with '466' is Delco.
Looks like that PCM is all HC11 (16bit) based. Any this is 99? very odd.

Cheers,
Ross