OBD2 software for Symbian, MeeGo gets fuel economy

Fuel economy sensor in action

It’s been a while since the last update of our Symbian and MeeGo OBD-II software versions. Yet we haven’t forgotten you. Quite the opposite, last week we rolled out a new version for these platforms including fuel economy sensor. The version for Nokia N9 was approved last week already. Today we got informed by Nokia that the Symbian update was approved and is ready for download from the Nokia Store. Some of you may have tried the new versions already. We have got some feedback and thanks for keeping it in par with the Android version.

What’s new in 1.6?

The most interesting feature here is the fuel economy. Fuel economy is not reported by majority of cars. Instead, it has to be calculated using other sensor values. For cars using gasoline, we use air flow rate from mass air flow sensor or intake manifold absolute pressure and intake air temperature plus other needed sensor values. For diesel engines, the fuel economy calculation is based on calculated engine load and air flow rate from mass flow sensor.

There are few new settings related to the fuel consumption calculation that you might want to check:

  • Fuel correction factor: general factor that is used to multiply the calculated economy. Change this only if you think the calculated economy should be fine tuned.
  • Volumetric efficiency: For modern cars the VE is about 85%, for older cars it might be little lower such as 75% or 80%. Change this only if you know what you are doing.
  • Engine displacement: This is the volume of the engine in liters. Change this to reflect your car!

If you have any questions or something to say, please leave a comment or contact us using email.





OBD2 data presented visually as a graph

The Android version of our popular OBD2 software got a new version released few days ago. In this blog post I want to demonstrate one of the most important new feature of the released 1.1 version: Sensor Graph.

With the Sensor Graph you can see the OBD2 sensor values presented visually as a graph. The benefit of a graph is that it helps you to see trends in sensor value changes. It is also easier (for the co-driver) to monitor the values while driving. Moreover, the fullscreen sensor view uses black background color to save the battery life as much as possible. It’s good to use it if you wan’t to monitor some gauge for a long period of time.

The screenshots below illustrate the graphs. They demonstrate the different views in OBD Auto Doctor that let you monitor OBD2 sensor values. The screenshots are taken with the Nexus 7 tablet. The graphs really look good on large screen but they are usable smaller screens too.

If you haven’t tried the app yet, please do yourself a favor and try it now!


OBD2 Sensor Data Graph


The red circles in the images demonstrate the places to be touched. Touching the Fuel consumption item in the list view opens up the Sensor Graph view. The Fullscreen Sensor Graph view is opened by touching anywhere in the graph within the Sensor Graph view.





How to upgrade to the Pro version of OBD Auto Doctor for Android?

Well, that’s a question we hear once in a while. As you may have noticed, there is no separate Pro version of the app in Google Play. Your observation is correct. The reason for that is because the upgrade is done using Google Play In-App Billing mechanism.

Okey, so how does the process go in practice? Let me show you how to upgrade the app with some illustration. You can click the images to view them larger.


Upgrade step 1 to Pro
Step 1
Upgrade step 2 to Pro
Step 2
Upgrade step 3 to Pro
Step 3


The steps are very easy. Let’s go thru them:

  1. Launch the app. Once started, tap Extras from the bottom menu. Then scroll down and select Upgrade.
  2. Tap the ‘Upgrade now‘ button.
  3. Check all the details and then tap ‘BUY‘ to make the purchase.

As with all Google Play purchases, this purchase is also bind to your Google Account. You can install the app to all your Android devices with a single purchase. Just download the free app from Google Play, launch it and the app should automatically upgrade to the Pro version. It is that simple.





10,000 downloads in 6 weeks after the launch of Android OBD-II software

OBD Auto Doctor has reached the 10,000 downloads milestone for the Android version in six weeks after launching the app on the Google Play. It’s great to see that there are some many enthusiasts that are interested in getting to know their cars better. It seems that most of our fans are early adopters since over 40% of the downloads are done with new phones and tablets running Android 4.0 Ice Cream Sandwich or newer. You guys are the trendsetters of this industry!

You can expect to get several updates for the app as we are constantly working on some neat features. Currently, we are working on the Sensor Graph and you can expect to get the upgrade at the end of next week.

Thanks for everyone who has tried our app. You can leave your comments, feedback or improvement ideas to the comments or to our email. We would love to hear from you. Cheers!

If you still haven’t tried the app, you can get it from Google Play.





OBDII software for Android ready for download from Google Play

Android robot

OBD Auto Doctor mobile version is now available for Android!

The app can be downloaded for free to make sure the software works with your scantool interface and car. If you like the app and want all the features unlocked, then you can upgrade the app to the Pro version using in-app purchase. It’s a convenient way offered by Google Play to buy the app without need to install any new apps.

The app will gain more features in upcoming updates. The updates will be free for all existing customers who have upgrade the app using in-app billing. First, we plan to get the app features in par with Symbian version. It means that we’ll add sensor graph to visually present gauge readings. We’ll also add dragstrip timing in near feature. Moreover, we have started to work on totally new features and those will be published later in the fall. Subscribe to this blog to follow the progress and participate in it!

Try out the app now for free:


Available on the Google Play

If you have any issues, don’t hesitate to contact us for help. If you need help or want response to your message, visit our Android website or send us email.

Feel free to post any improvement ideas and feedback to the comments!