An instantaneous mpg gauge would be a big advantage in our world. Maybe I'll work on that after the tunable AFR meter.
I've been trying to find someone to make one of these for months now. I don't have the know-how for something like this, and I would want nothing more than one of these. YOu can use the scangauge for the obd2 cars, but there is nothing for EFI obd0 and obd1 cars.
There are enough of us out there that this would probably sell rather well, IMHO.
I just bought a standard vaccuum guage made by Autogauge and had it fitted in the side pillar. Helps to keep an eye on my gas pedal.
How much/where'd you get it? I would pick one up for cheap enough just to have it when I do a highway 100mi run to figure out mileage so I could see if it reads the same as the numbers I'd get from the tank.
That is the style of vacuum gauge gauge that seems to be disputed in accuracy, especially in our newer not carbbed models, but it would at least be a resonable estimate, I think. Easy enough to find online. For a 96+ car you can just use a scangauge and just get goooood accuracy.