P4 ECM-SWITCHING QUESTION

[Justin Albury]

hi vance & others

on the 808 the shop manual also says that c9 isnt used ......but the lpg manual
tells me another story

if you have code from 4000 - 7fff  then one might think that maybe (????) it
defaults to the lower half of the chip if  12+ isnt at c9?????? maybe maybe not?

try putting a different file in from 0000 - 3fff and monitor it with diacom or
something like diacom while you put 12+ to c9 ....????

just a thought....

Justin


Jennifer Rose wrote:

> Hi All
>
>         Wanted to find out if any knows if the 165 ecm pin c9 is the same as
> Justin's 808? My shop manual shows pin c9 as "not used" on the 165 ecm. To
> add some info - the 730 memcal already has a 27c256 prom in it. Got one
> from friends tpi install-it was from 88 caviler v-6. Read the prom - it
> only had code at 4000-7fff, first part was completely blank. The two
> memcals are physically the same. Hate to solder in new proms to memcal :(.
> Hope the KISS method will work for 165.
>
> Thanks Vance