Intake air temperature
Last reviewed 2026-08-31
Description
Temperature of air entering the engine. Used by the ECU for fuel and timing calculations.
- Unit
- °C
- Group
- ice
Protocol requests
The same meaning can arrive through different mode + PID + ECU header combinations. Do not merge by hex number alone.
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Intake air temperature
Intake air temperature (IAT).
OBD · mode 01 · PID 0F · default header · primary
Source label: Standard J1979 mapping