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Re: 1991 Toyota Corolla - I want to make a pc interface for the ECU
Ray O wrote:[color=blue]
> "RyanHullShow" <ryanhullshow@gmail.com> wrote in message
> news:1167836587.343655.125070@42g2000cwt.googlegroups.com...[color=green]
> > I've wanted to make a little toy for quite some time now, but I'm
> > having trouble locating information on my car.
> >
> > I've got a 1991 Toyota Corolla. I would like to make an interface that
> > can read from the ECU to get current speed and fuel consumption so that
> > I can display an instant view of current fuel economy.
> >
> > I know some of the newer corolla's have this feature, as do thousands
> > of other cars, but I'm not sure if this model year had that option.
> >
> > In the end, I would like to create a small screen that displays the
> > current MPG I'm attaining, and perhaps an average.
> >
> > Any help would be appreciated, thanks in advance.
> >
> > Ryan[/color]
>
> If the car is a 1996 model year or later, most of the information you would
> want would be available through an OBD II interface and scanner like this:
> [url]http://www.thinkgeek.com/gadgets/electronic/8426/[/url].
>
> The ECU in your car does not actually monitor fuel consumption so assuming
> know which signal is the injector signal and can calculate fuel volume
> delivered based on injector pulse width, it would theoretically be possible
> determine instantaneous fuel economy. Based on the cost and time needed to
> come up with the information, it would be easier and cheaper to purchase an
> OBD II compliant vehicle and get an off-the-shelf computer.[/color]
You go, Ray O!
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