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Efficiency (free)

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Efficiency is a lightweight app that works with your vehicle's OBD2 computer to help you improve your fuel economy.

App Requirements:
- A gasoline vehicle built in 1996 or newer
- ELM327 Bluetooth Adapter
- An Android 2.1 phone/device or newer with Bluetooth capabilities.

A simple and intuitive interface allows you to keep track of your progress as well as your car's most important parameters in real-time.

The star rating system is based on what percentage of your trip the eco meter was on green (Green Driving). You may increase or decrease the difficulty by tweaking your 'Eco Meter' settings in your 'Preferences' menu.  

Quick Start:
The following directions will guide through the minimal steps to get you going. Before following these steps, please make sure your OBD2 adapter is already connected to your vehicle's OBD2 port.

1. Launch the App
2. Press 'Menu' and then 'Preferences'.
3. Press 'Select Bluetooth Device' and select your OBD2 device.
4. Back in 'Preferences' press 'Green Range Minimum' and enter your vehicle's combined fuel economy.
5. Back in 'Preferences' press 'Light Blue Warning' and enter your vehicle's combined fuel economy divided by 2 (Ex. 24/2 = 12).
6. Press the back button to exit 'Preferences' and press 'Start'
7. You are set! Best of Luck!

Tip: You may find your vehicle's combined economy through this web site:

Paid Version (coming soon!):
Though we're trying to keep this app ad free, please consider purchasing the paid version of Efficiency once it comes out. The paid version will have several new features, sensors, and won't include the annoying welcome screen every time you open/close the app. More details to come as it gets closer to release.

For any issues, questions, suggestions, and/or comments, please send us an email to  

Tags: Efficiency, OBD2, OBDII, Elm327, Ecu, MPG, fuel economy, fuel efficiency, Eco meter, ecometer, econmeter, green meter, ECU, car, truck, speed, rpm, gas, OBD, OBD-II.

Alterações recentes:
- Fixed Coolant Temperature Bug
- Added Imperial option on 'Preferences' menu
- Added screen auto rotation
- Added an Auto-Start option. Enabling this option will turn-on the your device's Bluetooth and start a new trip automatically when launching the App.

iPhone relacionados para Efficiency (free)

Efficiency (free) foi desenvolvido para Android por Nubbu Apps

Nome do arquivo :

Permissões do sistema : 3 Clique aqui para exibir/ocultar a lista
  • android.permission.BLUETOOTH_ADMIN
  • android.permission.BLUETOOTH
  • android.permission.WAKE_LOCK

Eu sou o desenvolvedor deste Aplicativo

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Comentários e avaliações para Efficiency (free)

Filtros :
por Um usuário do Google o 12/1/2011

Not working/Não funcionou I use Defy with gingerbread and a cheap ODB2 sensor from amazon and it didn't worked. Torque pro works./ Eu tenho um Defy com gingerbread e um sensor generico comprado na Amazon e não fucnionou. O Torque pro funciona sem problemas.

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Efficiency (free) for Android was rated by Android Market Users on : 2.4/5


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