OBD II Technology
Since 1996 all vehicles in the US are required to have an OBD II port for car diagnostics and service. This port enables you to communicate with the onboard computer and get information about engine performance, fuel consumption, important temperature readings, mileage and other important data. Also, you can read error codes and turn off the engine trouble light.
Combining the information from the car's computer and the phone's GPS and accelerometer sensors, results in a whole new set of possibilities. This enables you to measure your G-force on corners, acceleration, speed, braking and lap times. All of this data can be recorded and compared for different setups or tune up settings. You can even compare engine data like the power of torque output for different parts, providing you with the information you need to get the best set up.
These features can be very useful for people who like to tune their cars and get the maximum performance out of them, and also for people who like to race and compare lap times. In order to connect your Android phone to your car you need an adapter that will connect your phone and your car computer wirelessly. These adapters use two technologies, Bluetooth and Wi-Fi. Here are the best two models, one using Bluetooth and the other Wi-Fi. These are the best two Android car performance analyst apps.