TBI with TPI ecm???

[Shannen Durphey]

I know the 93 Cavalier 2.2l (16134847) can be reprogrammed with the
Tech 1.  This is a batch fire 4 cyl pfi system.  I do not have
injector resistance values for these very different parts.  I believe
the Geo Storm was the first vehicle with EEPROM, released around 1991
or 92.  I can't get to that data right now.  8 cylinder units came
later.

Shannen

Kevin R wrote:
> 
> Dual truck TBIs/4 injectors is an idea for a future motor.
> Right now the thought is to run one instead of the 747 on my crossfire
> project.
> Main reason is to try and get a better/faster output with more parameters
> when using a scanner.
> 
> At what point did GM go to something that can be configured thru connection
> rather than burning and swapping chips, and can they be used in a 2 injector
> setup like the xfire?
> 
> Kevin R
> 
> >
> > I did some short term testing with a 730, and a 749 running a TBI.
> > Both in hot rodded v-8 things looked promising, just owners were into
> > thinking one chip should work, and didn't want to spend the time working
> > things out.
> >   For a dual TBI I think the 749 would be more robust since it has run 4
> TPI
> > P+Hs.
> >
> > Quad injectors, needs a driver board to take the load long term.  The 749
> > gets really warm driving 6 P+Hs, and I now have an intermittent miss and
> > dead WOT with the 749 I ran this way.
> > Get some Cherry Injector Drivers and large heatsink, and do the external
> > board for the 4 TBI injectors, IMO.
> > Bruce
> >
> > Since TPI units such as in the various 80's F-bodies batch fire the
> > injectors, is it possible to use one of these ECMs to control a TBI with
> > either a dual or possibly quad injectors?
> >
> > Kevin R
> >
> >
> 
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