Instantaneous MPG is calculated by dividing instantaneous speed by instantaneous fuel rate. The value you see on the dashboard is also filtered by a moving-average filter to smooth out some of the fluctuations.
I admit I am new to the OBDII stuff. I am using an OBDpros USB scantool. This software is many orders of magnitude more awesome than the stuff that came with the tool.
I installed the first setup you posted a few days after you posted it. It was working great, the indicators are well placed, and all the data displayed seems accurate.
However I did manage to finally break it a couple of days ago. I don't know how. The display is just frozen now with all zeros except the total mpg. The logs do not show up, nor do the monitored PIDs. The hex data showing up in the diag section is just scrolling 01 03: 41 03 01 00. Is that fuel system status?
The OBDpros scantool 1.0 software that came with the tool still works. I have tried uninstalling and reloading your latest setup and the .NET 2.0 framework.
Any help would be apprecitated, because I really like your software, and would like to use it again.
I've been working hard to improve stability, enhance the UI and add additional features so that I can turn this into a pretty nice product. Hopefully this solves your problem and any feedback is helpful!
As far as feedback, I have had no problems interfacing with a touchscreen and the displays are easy to read and laid out nice.
If you want people to nitpick, is there a way to see the data in English units on the PID monitor screen?
And I notice that "absolute throttle position" shows up in the free software but not on yours.
Is there a way to clear the total mpg, like if you did a mod and want to start over?
And one more thing, have you thought of a cool name for the software, or is that a trade secret for now?
As far as any ideas for additional features, how about being able to set a redline for RPM, mph, and temp. It could change the screen color or something if violated. I don't know about cost vs. benefit in doing stuff like that, I'm not a software guy.
Thanks again for the quick fix! It's now working great again in my '06 Chevy Colorado.
I appreciate the feedback, whether good or bad.
-I'm working on fully implementing the units so that you can select english or metric and that is what you'll see in the grid, logs, and dashboard.
- As far as the "absolute throttle position": if this is a PID that your car supports then the software can read it and show it in the grid. Check the supported PIDs tab page...this is what your car says it supports so if it's listed in there just double click it to monitor it. Remember that the more PIDs you monitor the slower the overall refresh rate.
- I never thought about wanting to clear total MPG but it would be easy to add. I'll put it on the TODO list.
- Your other idea's are on my list so I plan to implement at some point.
Sorry, but where can i find your soft ?
if you could email me that obd2 program you made it would be great i cant find one i like
Crap, where did the download go? I finally got ready to install it, and now I can't find the link.
Anybody who makes significantly more money than you do.
The Hoe-Puter Worklog
Progress (Phase one):