Obd diagnose with iPhone image

Rev is an application for the iPhone and iPod Touch that provides graphical representations of real-time vehicle data. By communicating directly with your vehicle’s ECU.

Rev can monitor serveral vehicle metrics:
*  Vehicle Speed
* Fuel Consumption
* Engine Coolant Temperature
* Fuel Pressure
* and lots more!

Rev also reads and lists engine codes (like those responsible for your Check Engine/MIL light), and allows you to reset them as well!