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Air Temperature Sensor ( Ambient / Intake ): Description and Operation

Vane Air Temperature (VAT) Sensor:






PURPOSE
The Vane Air Temperature (VAT) sensor measures inlet air temperature and provides an input signal to the ECA. The signal is used by the ECA in calculations for air/fuel ratio, fuel pressure, and idle speed.

LOCATION
Integral with vane air flow meter assembly.

OPERATION
Sensor is a device whose resistance changes with temperature. The ECA interprets these variations as temperature fluctuations.