Rev by DevToaster is an application for the iPhone and iPod Touch that allows real-time monitoring of vehicle ECU data from the OBD-II port. Rev interfaces with a WiFi OBD-II dongle. If your check ...

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OBD2 scanners such as this one that’s just $33 at Walmart ($117 off), opened up DIY diagnostics to a whole new generation. Meaning, every driver should have one. Not only can it test your ...