wrote:
> Given ever higher price for gas it would be nice to be
> able to monitor ones driving habbits to get the best MPG
> posible.
>
> In a EFI engine the fuel consumption is based on the on
> time for the injector(s). Has anyone seen any DIYS circuits
> for intergrating the injector duty cycle.
>
> I have been playing with a laptop PC versio, but it isn't
> too healthy to be watching a LCD while driving.
>
> I am hoping to find a way to reduce this info to a single
> analog meter so that all you have to do is maximise or
> minimisethe needle position.
>
> Terry
>


i believe a simple vacuum gauge hooked up to a port on the intake
manifold might do the trick, or at least be worth playing around with.
the less the vacuum, the better the mileage?