"Instant" values bounce around?
 

Are mpguinos supposed to have stable Instant MPH, MPG, GPH, etc, readings, under steady driving conditions?

I'm still adding code to my mpguino & havent wired it into my car yet. For my testing, it's running on dcb's signal generator, which I thought should provide the most stable inputs possible, but my numbers are quite jumpy.

GPH ranges from 2.01 - 2.37, MPH is 93-100 (no, i'm not using the default #defines :) ), MPG is 35-48, RPM is 5300-5800. My Current & Tank data are all rock steady; the problem is only with Instant. Somebody's post about GPH going "0.12 0.12 0.12 0.15 0.12 0.12 ..." made me wonder if actual - rather than simulated - driving would produce stable figures.

I'm guessing the problem is due to vss & injector pulses landing on random sides of the 1/2-second sample window. (?)

What version of the software are you using?

0.75. I looked at 0.82 & didn't see a change in that part of the code.

In that case, I'm not sure. Mine was jerky on .69 but I heard about it being smoothed out, but I'm not sure for which update that was.

So is yours still jerky? What version?

Still jerky on .69. I'm not sure if I'll ever update it so unfortunately I can't tell you if it did indeed smooth out for my computer :p