title: KWP fast protocol via CAN bus for OBD2
body: <p>I have a question about my CAR's ODB function.
  I have a USB dongle with AT90CAN128 uE , the uE has CAN driver and i can use this to read the data traffic on the bus.
  I have a BMW 116i but this car uses KWP-fast protocol for the obd2.
  I want to ask if can i use the CAN bus to send queries to the ECU for the obd2 available variables. 
  I am not sure because at work we use the KWP2000 protocol via CAN bus, but i don't have the specification, we use a ready tool on CANoe. </p>