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Home >> Saturn >> 2008 >> Astra XR, 4D Hatchback, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - DTC P000A To DTC P0365 >> DTC P0102 or P0103 >> Circuit/System Description

Circuit/System Description

The mass air flow (MAF) sensor is integrated with the intake air temperature (IAT) sensor. The MAF sensor is an air flow meter that measures the amount of air entering the engine. The MAF sensor used on this engine is a voltage based sensor. The greater the airflow, the greater the voltage signal. The engine control module (ECM) uses the MAF sensor signal to provide the correct fuel delivery for all engine speeds and loads. The MAF/IAT sensor has the following circuits:

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