似乎nissan需用can compatible接口设备，还有可能蓝牙互联的问题

http://www.the370z.com/nissan-370z-general-discussions/4342-obd-reader-problem.html

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Originally Posted by ZeN Guys, i just learned from torque-bhp.com that most nissan car that regionaly market for asia cant read any pid/data from the ecu except for engine error codes. i just tried the cheapo ebay elm327 obd2-bluetooth that connects to samsung galaxy tab 10.1 via torque pro. I can pairs both tab and the adapter fine, make connection to ecu also without problem but when it try to poll some data, the ecu throws a code saying that it is a restriction by manufacturer. Those car that sells in US/EU market gets it enabled by default. I wonder if any of you ECU guru knows how to enable it, and which parameter to enable? Really wish to have this feature enable so that i can view it via my tab. reference here Forums — Torque OBD ECU Scanner Torque Discussion / Ideas Just bought Torque - I get "no data" readingsTorque

Surprised it even works for you. I have torque on my phone (evo 4g) and the cheapo ebay ELM bluetooth OBDII adapter. It works fine on my QX4 and will stay connected but on the Z it just connects and then immediately disconnects. I cant keep it connected to save my life.