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Home >> Hyundai >> 1991 >> Excel GLS, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices >> Atmospheric (Barometric) Pressure Sensor
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Atmospheric (Barometric) Pressure Sensor

Pressure sensor is installed on airflow sensor. It senses atmospheric pressure and converts it to voltage which is sent to ECU. The ECU computes altitude and corrects air/fuel ratio and ignition timing.