[Gmecm] EPROM Identification- (from Australian Delco VR 5L Auto)

[Justin Albury]

The fact that it is a PCM(642) says that its a Auto.  Manuals ran ECM(082).  All
autos had a 27C512 EPROM and all manuals had a 27C256.  All V6's had Knock
decode boards in the MEMCAL and only HSV type V8's had Knock decode boards.
if you are still unsure on the memcal type ....take a digital pic of the chipset
or the knock board and i will let you know what type it is.

Justin




Quoting John Lawson <jg_lawson at optusnet.com.au>:

> I've just bought a 1617642 PCM out of a VR Commodore V8 Auto (I think), with
> a memcal that has an EPROM with the following written on it:
> 
> 1616 7633
> BLUP 9350 980
> SINGAPORE 0263
> 
> This should be a 512 Kbit EPROM if it's what I think it is.  It had a
> handwritten "Bullet 5118" or "Bullet 3118" sticker on it, but no Delco silver
> sticker.
> 
> I've tried to read it as a 27C512, and it just downloads 8787, F7F7 and
> FFFF's.
> 
> Any idea what type of chip this is, and what parameters I have to set to
> re-burn it?
> 
> Thanks,
> 
> John