Re: Memcals

[Swayze <kswayze@bellsouth.net>]

for us newbies out here-- what exactly
is
a MEMCAL-- a hard wired chip or are they
programmed chips? If they are hard wired
- are they resistor/capacitor (analog?)
wiring? the reason I am asking -- if a
car is modified ( cam and headers) will
the memcal be able to provide a limp
home mode. if not is there a
resistor/capacitor combo in one that
would adjust the base fuel amount so
that limp home mode would work? The
assumption I am making is that they are
hardwired resistor/capacitor
(differentiator and integrator)
circuits.
I read the gmecm archives but could only
find a lot of assumptions.. no real hard
info.
yea well...(curiosity killed the cat)

byE
Mike S.

JTesta1966@aol.com wrote:
> 
> In a message dated 1/14/00 7:02:42 AM Eastern Standard Time,
> gerich@one.net.au writes:
> 
> << List
>  I was reading through a memcal application chart and found different memcals
>  for the same vehicle depending on whether heated or non-heated o2 sensors
>  were used.
>   >>
> 
> Probably something to do w/closed loop timer....stuff like that. My GN's
> original chip had one timer, the recall chip for the same car is like 2/3 of
> the time, and the coolant temp to enable closed loop was changed as well.
> Other that that there wasnt much different that I recall. Most likely
> something like that in your case.
> 
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Jim Testa                                         TType86 on #BuickGN
> jtesta1966@aol.com                               buick.fiendish.net:6667
> ASE Master Technician            NJ Lic. Motor Vehicle Inspector
> L1 Adv Eng Perf Certified     NJ Licensed Emissions repair Tech