Torque Android App & OBDII Bluetooth Adapter

Torque Android App & OBDII Bluetooth Adapter . This is an Android app

OBD (On-Board Diagnostics) are, in fact, so useful that every car manufactured in Europe since 2001 has been obliged to have one (1996 in the US).
The main uses of OBD are: to check and clear a fault code causing the Check Engine light to glow (saving a garage bill) also to assess in detail your car's health by looking at its idle speed, reported fuel consumption and horsepower outputs 
In performance situations, where you want to know your vehicle's 0-60 or 1/4-mile times.