memcals

[Jeffery Green]

I have a question about these chips.
I'll save you the long story. I broke the chip farthest from the eprom.
Can I get a blank chip and copy the data from a spare memcal.
If so what type of chip is it.

Thanks Jeff


----- Original Message -----
From: "Allan Langford" <allanlangford at yahoo.com>
To: <gmecm at diy-efi.org>
Sent: Monday, April 30, 2001 7:25 PM
Subject: Re: memcals


> You will find one of the boards in the v6 memcal is the knock decoder, i
> have a 4cyl JE 2ltr memcal if you want to swap for a v6 one :)
>
> Regards,
>     Allan Langford
>
> www.geocities.com/allanlangford
> Celica XX GTE Project
> ----- Original Message -----
> From: Dave <bigg at adam.com.au>
> To: gmecm <gmecm at diy-efi.org>
> Sent: Tuesday, May 01, 2001 2:02 AM
> Subject: memcals
>
>
> > I wondering if anyone can help me. I've noticed differences in internal
> > parts in memcals comparing between an Oz V8 and V6 (for '808 ecm).
There
> > are 2 chips mounted next to the eprom (14 pin and 16 pin).  Looking at
> Ludis
> > Langens' site, he refers to them as 'resistor packs'. What exactly are
> they?
> > Are they what the ecm uses for the 'limp home' mode?
> > Will the differences between the V6/V8 memcal prevent one being used for
> > another, eg: program a V8 bin onto eprom and use in the V6 memcal to
> control
> > a V8?
> > If it wont work, is there a modification I can do to make it work? The
> > reason I ask is, I have quite a few V6 memcals but no V8 ones.
> >
> > Also, I was at a computer recyclers today and noticed a lot of old cards
> > being thrown out which contained 27C256 eproms.  Is it possible to use
> them
> > instead of 27C128 by just putting the bin image into the first half of
the
> > addresses? or any other way?
> >
> > Thanx, Dave
> >
> >
> >
> >
>
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