NEW Super Mini Elm-327 Bluetooth Obd-ii OBD Can with Power Switch Software V2.1 Read diagnostic trouble codes, both generic and manufacturer-specific, and display their meaning, Clear trouble codes and turn off the MIL ("Check Engine" light), Display current sensor data, including: Engine RPM, Calculated Load Value, Coolant Temperature, Fuel System Status, Vehicle Speed, Short Term Fuel Trim, Long Term Fuel Trim, Intake Manifold Pressure, Timing Advance, Intake Air Temperature, Air Flow Rate, Absolute Throttle Position, Oxygen sensor voltages/associated short term fuel trims, Fuel System status, Fuel Pressure.