"Faking" an O2 sensor

[nacelp]

Sorry then I can't help ya at all on that setup.
On VATS (was) 50% DC
Grumpy


> Nope, that's the problem. The LS1 has 8 ignition coils and no distributor.
> But, that's why I wanted this engine, state-of-the-art. The T56 is a six
> speed. I think I can deal with the transmission just fine (skip shift,
etc.)
> For now I'd just like to trick the PCM into letting me run the thing until
I
> get the 4-layer board running. I need to know how to trick the VATS. I
> believe it requires a square wave input at about 50hz, duty cycle is
unknown
> so far. I'm a little way from having the engine mounted so I can fire it
up
> though.
>
> thanks, dave
>
> ----- Original Message -----
> From: nacelp <nacelp at bright.net>
> To: <diy_efi at diy-efi.org>
> Sent: Saturday, April 15, 2000 9:14 AM
> Subject: Re: "Faking" an O2 sensor
>
>
> >
> > Might be a whole lot easier to use an earlier pcm that can be edited.
> Nice
> > being state of the art, but sometimes can be difficult.  T56 is manual
> > tranny, right?.
> > Is your ignition the same as a late Lt1?.
> > Grumpy
> >
> >
> > > I agree with you wholeheartedly. I'm faced with the same problem time
> and
> > > again. I'm working on putting my 1998 z28 engine/trans (LS1/T56) into
my
> > > 1964 Impala SS. I will remove the Cats and will have to solve that
> > problem.
> > > I've got bigger problems right now though. I sure do wish I could find
a
> > > piece of software that would allow me to reprogram that PCM, like
remove
> > the
> > > VATS, adjust fuel maps, etc.
> > >
> > > I would think you only need to provide a voltage back to the PCM that
is
> > > right a Stoch, no?
> > >
> > > dave
> > >
>
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