GM Speed Density for 2.8L W engine

[Shannen Durphey]

David Garnier wrote:
> 
> Bruce
> 
> I am a newbee to here but maybe I can contribute something to the
> group. I own a 86 cebebrity eurosport with 2.8L W engine with the
> speed density update, maybe I can help here.
> 
> The speed density tag on the front passenger shock tower is 10154721.
> I think that is the service bulletin number because it is also
> on the ecm's metal prom cover.  The remanufactured ECM number is:
> 16196344. On the memcal socket-base there is stamped: 86767 with
> 9030 maybe being the date code.  The prom label reads: ASMZ 0742
> and there is a thick film ceramic hybrid next to it (the corner
> which overhags the eprom) with a number of: 5A0213.  Both of these
> device are solder into the memcal socket (%^&*)!  Any ideas why
> there is this hybrid?  There is a GM publication for this update
> and it is listed under the Celebrity section of Helm's publications
> called: "87-88 driveability and emissions manual section 6E" the
> pub number of: "ST 399-87/88SD." I think the value of this pub
> is limited but all of the GM's ECM trouble shooting and circuity
> is in one small book.
> 
> I am trying to dump this eprom, but I have been busy lately.
> I built a wire wrap socket extension so that I won't have to
> lift the eprom out and possible crack the ceramic hybrid which
> overhangs one end; the bastards have soldered these devices onto
> the memcal socket!  Work's dataio is too damn smart for itself
> because it wants the exact device number before one can examine
> it. I understand that there is a selection to disable the prom ID
> checking but I have been to busy to check.  If you or anyone else
> is interested, I will send you the prom file when I finally dump it.
> 
> dave garnier
> --
> 
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> Dave Garnier                    Nobody told me that there would be days
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> University Wisc-Milwaukee       like these, strange days indeed, most
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Was that ECM remanufactured by Delco?
ASMZ prom fits 87 A body (Celebrity) with 2.8, 4spd auto,
federal emiss.
Should be removable.

Shannen