If Engine Speed (RPM) is less than this value, then the PCM uses a dynamically calculated airflow value to determine grams of air per cylinder. ![]() If the Throttle Position (%) is above this, and Vehicle Speed (MPH) is above Max Speed for Idle Mode (B0107), then airflow will be calculated as Non-Idle.ī0120 - RPM Threshold for Airflow Calculation If Vehicle Speed (MPH) is above this value, and Throttle Position (%) is above Max Throttle for Idle Mode (B0108), then airflow will be calculated as Non-Idle. Minimum Throttle Position (% TPS) that the PCM still considers the TPS to be at WOT. The volume in Cubic Centimeters (CC) of each Engine Cylinder. The cell units are in Grams*Kelvin/kPa. Column headings = RPM Row headings = MAP Volumetric Efficiency (VE) table used while the engine is Cranking. It is used to predict the volume of air entering each cylinder under varying conditions. The air mass per cylinder can be determined from the VE table using the following formula: g/cyl = VE*MAP/Charge Temperature Where: VE is in g*K/kPa, MAP is in kPa, Charge Temperature is in degrees Kelvin.ī0102 - VE While Cranking (Grams*Kelvin/kPa) The cell units are in Grams*Kelvin/kPa. Column headings = RPM Row headings = MAP The values in this table represent the efficiency of the engine's ability to fill the cylinders with air. This is the main Volumetric Efficiency (VE) table. Transmission Range Switch / Gear Indicator TypeĮlects if a Transmission Range Switch / Gear Indicator Type (if any) is used by the vehicle. 0 = None (no transmission mounted Range Switch - like a Camaro) 1 = PRNDL Range Switch (transmission mounted Range Switch - like Corvettes and most Trucks) 2 = P/N only Switch (like Trucks with the Allison Transmission)ī0101 - Main VE Table (Grams*Kelivin/kPa) This MAY be the Vehicle Indentification Number (VIN) programmed in the calibration. *** Do NOT make changes to this parameter, UNLESS the originally dsiplayed values were in proper VIN format (i.e. ![]() *** These parameters are displayed for information purposes only - NEVER change *** These parameters are displayed solely as a confirmation that all Checksums are being updated (as necessary) - each time the BIN file is changed, and then resaved. *** These parameters are displayed for information purposes only - NEVER change *** Oper System = the main Operating System (OS) programmed in the calibration. This is displayed solely to ensure that the correct XDF file is used to edit the BIN file. Parameters for Operating System (OS) 12212156. This OS was used in many 2002 GM vehicles. The PCM is a 512 Kb, with Blue and Red 80 pin connectors.
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