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Mode 01 • PID 7F

OBD2 PID 017F

Engine run time

Definition

Mode
01 (hex)
PID
7F (hex)
Data bytes
13
Units
—

How to read PID 017F

Send mode 01 with PID 7F over OBD-II. The ECU returns 13 data byte(s). The result is “Engine run time”. This is standard SAE J1979 data supported by most OBD-II scan tools and loggers.

Why it matters for tuning

Live PIDs like this are how tuners and workshops verify a remap on the road — logging RPM, load, boost, lambda and temperatures to confirm the map is safe. The desktop Softechpro Solutions software complements live logging with offline ECU editing: DPF/EGR/AdBlue/DTC off and Stage tuning with automatic checksum.

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