"Faking" an O2 sensor

[Dave & Irina Eicher]

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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