Free OBD2 Software anyone? (No Longer Free) - Page 3

mjo151 · 02-09-2009, 09:15 PM

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.

Laminar · 02-09-2009, 09:46 PM

Quote: Originally Posted by mjo151

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.

Is the fuel rate derived from the injector pulse width or is it based on a stoic assumption?

mjo151 · 02-09-2009, 10:07 PM

Quote: Originally Posted by Laminar

Is the fuel rate derived from the injector pulse width or is it based on a stoic assumption?

It is based on stoic assumption from MAF sensor.

babyface06 · 02-12-2009, 12:21 AM

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.

mjo151 · 02-12-2009, 12:25 PM

Quote: Originally Posted by babyface06

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.

It sounds like the software is communicating with the scantool correctly. My guess is that it is no longer monitoring vehicle speed, MAF, etc. Under the Diag page, open the PID Setup tab. Any PID's that you want to monitor should have their polling rate set to something other than zero. To change the polling rate, double click the Polling Rate cell in the grid for the PID that you want to change and enter the new rate in the editor that pops up (a screen shot is attached). I would suggest setting speed and MAF to 1 for the highest priority. The software will automatically set the polling rate to zero if it does not get valid data from a PID after a number of consecutive requests.

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!

babyface06 · 02-12-2009, 07:29 PM

Quote: Originally Posted by mjo151

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!

Thanks! That solved my problem. I guess that problem came about, because my PC and scantool can be on without the ignition on. And, I set up your software to load during boot up. So I guess one time when I had the PC on without the ignition on, the polling must have gotten reset to zero.

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.

mjo151 · 02-13-2009, 12:23 PM

Quote: Originally Posted by babyface06

Thanks! That solved my problem. I guess that problem came about, because my PC and scantool can be on without the ignition on. And, I set up your software to load during boot up. So I guess one time when I had the PC on without the ignition on, the polling must have gotten reset to zero.

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.

Good to hear that solved your problem. I will keep that scenario in mind and see if I can do something to prevent that from happening.

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.

BlackyP · 02-13-2009, 01:59 PM

Sorry, but where can i find your soft ?

s10man · 02-13-2009, 04:43 PM

if you could email me that obd2 program you made it would be great i cant find one i like

Uraijit · 02-19-2009, 08:19 PM

Crap, where did the download go? I finally got ready to install it, and now I can't find the link.

It's A Honda · 02-21-2009, 11:59 AM

The attachement has disappeared, and so has the user! There have been no more posts by that user since then.
I had downloaded the zip file he/she had posted but now I am skeptical about even installing it!

Laminar · 02-21-2009, 01:53 PM

Quote: Originally Posted by It's A Honda

The attachement has disappeared, and so has the user! There have been no more posts by that user since then.
I had downloaded the zip file he/she had posted but now I am skeptical about even installing it!

Would you care to re-attach it to this thread for the rest of us?

Tidder · 02-21-2009, 02:00 PM

My guess is getting ready to release a new version, or a pay-for version...

mjo151 · 02-21-2009, 03:01 PM

Hey all. I haven't fell of the face of the earth. I'm exploring turning the software into a product that I can fully support, update, etc. As I have realized, it takes quite a large amount of time and effort to ensure that the software works with various vehicles and scan tools. I have been providing an install for those who contact me via PM with an email address.

drewbp · 02-21-2009, 03:38 PM

Okay so back to my earlier posts. I have an Infiniti G35 with a 275hp V6 motor. On the way to work this morning. I had instant mpg go as high as 75 mpg. It never went below 18mpg, even when flooring the car. My trip mileage was at about 28mpg. When I do a manual mpg check. Fill the car/ divide the miles traveled by gallons filled, I have never averaged above 19mpg. I would have to say that at the very least something is wrong with the instant gas mileage, as when I floor the car I would expect no better than 8-12 mpg.

I also noticed that when I hit what I thnink is the trip reset, it resets the polling of PIDs to 0 and I have to go back in and set them all to one, as mentioned several posts above. Thanks.

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