The first version of our OBD-II app for Windows Phones was released about a month ago. Today, I’m happy to provide you more. The first update for the app, version 1.1, is available from the Windows Phone Store now. The update contains some nice additions such as fuel economy and other smaller improvements.
The best part of the update is fuel economy for gas and diesel cars. Most cars don’t report the consumption via OBD as standard parameter. Therefore, the consumption must be calculated from other sensor values. For cars using gas, we base our calculations on MAF air flow rate or intake manifold absolute pressure and intake air temperature. For diesel engines, the fuel economy calculation is based on calculated engine load and MAF air flow rate.
The app contains some new settings related to the fuel economy. First of all, the app detects the used fuel type automatically. However, if the consumption value seems to be totally off, you might want to set it manually. The other parameters you might want to check are:
fuel correction factor: 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%. You need to change this only if you know better value than the default.
engine displacement: This is the volume of the engine in liters. Change this to reflect your car!
Another thing we improved in the app is personalization. Now you can select the avatar image from the gallery too. This is in addition to taking new photo with the camera.
This feature was actually one of the user requests we got from the first version. Please keep sending your improvement ideas and feedback to us. We’ll work hard to make this app the best OBD app for Windows Phones.
Download the update and start saving fuel, money and nature!