The other two I.C's in the Memcal

[Justin Albury]

the function is so that the ecm knows if itys a 4,6 or 8 in backup mode and the
resistors set the value....well thats what i was led to beleave

Juz!

mrvette wrote:

> I knew they wee resistor packs,  but what is their function?   anybody know
> which function is which?  pin to pin?   they  probably set comparitor levels, I
> would guess,  such as maybe turn on off a/c clutch when MAP varies by so much?
> etc.....GENE
>
> Richard Wakeling wrote:
> >
> > Hi Ross,
> > Ross Myers wrote:
> > >
> > > Does anybody know what the other two chips are inside the GM memcals, not
> > > what they do, but what part types they are, BPROMS, Resistor Packs?.
> > >
> > > Thanks
> > >
> > > Ross Myers
> >
> >         I have found these other two chips to be resistor networks. In
> > Australia all the memcals I have come across have a 14 pin dil and a 16
> > pin dil chips. If you are patient enough you can measure and draw out
> > the resistor layout and let me know what the values are for the Turbo
> > Sunbird.
> > Cheers Richard.
>
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