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 Many others Package Including: 1pc x ELM 327 OBD HH Mini Bluetooth V2.1 1pc x CD Driver