The Stern Technologies OBDII scanner and code reader supports reading the following engine parameters. Note that your car may not support all these parameters.
  • Engine Load (LOAD)
  • Engine Coolant Temperature (ECT)
  • Short Term Fuel Trim for each Oxygen sensort
  • Long Term Fuel Trim for each Oxygen sensor
  • Fuel Pressure
  • Intake Manifold Absolute Pressure (MAP)
  • Engine RPM
  • Vehicle Speed Sensor (VSS)
  • Ignition Timing Advance
  • Intake Air Temperature (IAT)
  • Mass Air Flow Rate (MAF)
  • Absolute Throttle Position (TPS in percent)
  • Secondary Air Status (up stream, downstream, off)
  • Oxygen Sensor Voltage for each sensor
  • What OBD requirements car meets
  • Power Take Off Status (PTO)
  • Time Since Engine Start (RUNTM)
  • Distance Traveled with Check engine light on (MIL_DIST)
  • Fuel Pressure relative to manifold pressure (FRP)
  • EGR command percent flow (EGR_PCT)
  • EGR Error in percent (EGR_ERR)
  • Evaporative Purge command percent (EVAP_PCT)
  • Fuel Level in percent (FLI)
  • Number of warm-ups since DTC cleared (Warm_Ups)
  • Distance traveled since DTC cleared (CLR_DIST)
  • Evap system pressure (EVAP_VP)
  • Barometric Pressure (BARO)
  • Oxygen sensor Equivalence Ratio (EQ_RAT)
  • Oxygen sensor current
  • Catalyst Temperature
  • Control Module Voltage (VPWR)
  • Absolute Load (LOAD_ABS)
  • Command Equivalence Ratio (EQ_RAT)
  • Relative Throttle Position (TP_R)
  • Ambient air temperature (AAT)
  • Absolute Throttle Position location B (TP_B)
  • Absolute Throttle Position location C (TP_C)
  • Accelerator Pedal Position D (APP_D)
  • Accelerator Pedal Position E (APP_E)
  • Accelerator Pedal Position F (APP_F)
  • Command Throttle Actuator Control (TAC_PCT)
  • Minutes run by the engine while Check Engine (MIL) light on (MIL_TIME)
  • Time since diagnostic trouble codes cleared (CLR_TIME)