The AL619 seems to come up short on displaying live data compared to an older scan tool from another vendor. I would like to see at least the following parameters added to the live data for GM vehicles: Battery Voltage in Volts, Throttle Sensor in Volts, Front O2 Sensor in Volts, Rear O2 Sensor in Volts, EGR Position in Volts, Fuel Tank Pressure in Volts, Throttle Position in %, EGR Valve Open in %, Trans. Oil Temp in degrees F or C, Camshaft Retard in degrees, Start Up Coolant Temp in degrees F or C, Canister Purge Solen in %, Fuel Trim Cell, Desired Idle in RPM, Desired EGR in %, BARO Pressure in "Hg or other metric units, A/F Ratio, Engine Run Time in Seconds, Knock Retard in degrees, EGR Test Count, EGR Posn Error in %, Total Misfires in Counts, Misfire History Cyl1, Misfire History Cyl2, Misfire History Cyl3, Misfire History Cyl4, Misfire History Cyl5, Misfire History Cyl6, Misfire History Cyl7, Misfire History Cyl8, Long Term Fuel Trim, Rich/Ln Ln/Rich Ratio.