Enter a standard OBD2 Mode 01 PID (e.g. 0C or 010C) to see its name, formula and units.
PID 0C (010C) is Engine RPM — formula (256·A + B)/4, in rpm. Enter it above for the full breakdown.
Parameter IDs are standardized codes (SAE J1979) a scan tool requests to read live sensor data like RPM, coolant temp, speed and fuel trims.
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