Tag
#Mode 01
3 posts in Car Diagnostics blog about "Mode 01" — OBD-II diagnostics, DTC codes, repair. ← All posts
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OBD-II Mode 01: current data and the PIDs that matter
Mode 01 is the live feed every OBD-II car supports. Knowing which of its hundred-odd parameters are worth watching turns a list of numbers into a diagnostic method.
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Why your scanner shows fewer parameters than the next car: how supported PIDs work
Somebody else sees boost pressure and oil temperature; you see RPM and speed. That is not an app limitation — the car itself declares which parameters it will hand over, and the list differs from vehicle to vehicle.
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12 OBD PIDs worth logging every day — early problem detection without Check Engine
The most useful OBD-II PIDs for daily monitoring: LTFT, coolant temp, MAF, boost pressure, misfire counter. How to set up automatic logging in Car Diagnostics and what to do with the trends.