I bought a EvZ Mini Interface Works on Android Torque Bluetooth Obd2/obdii Car Diagnostic Scanner (Mini), a PWOW® WIFI Wireless OBD2, OBDII Car Auto Diagnostic Scanner Adapter Reader, ELM327 for iPhone4S/5 iPad4 iPad mini and PC in XP System, with Micro Disc and a New Version V1.5 ELM327 OBDII OBD2 Bluetooth Car Diagnostic Interface Scanner because I want to code an application like OBD Auto Doctor. But first I'm trying to extract data from the car to some archive where I can process it. How can I do it?

  • You should have several options in your os menu to "export as '' " or "save log." There's some horsepower calculators online if you take some of your torque readings... should have to enter some vehicle information like curb weight, a cars weight when full of fluids, and exact wheel dimensions in the program for hp data. Every gear has it's point of highest torque. – GettingNifty May 25 '15 at 22:31

OBD II is a standard. All the PIDs and the relavant formulas are available online. There is also a wiki on OBD II pids. The protocol to look for depends on whether your OBD is based in CAN or K-line

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