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Home >> Saturn >> 1999 >> SW1 Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Tests W/Codes - DTC P0100-P0134 >> DTC P0103 >> DTC P0103: MAF Sensor Circuit-High-Frequency (4.3L, 5.0L, 5.7L & 7.4L "C", "G", "K", "L", "M", "P","S" & "T" Series) >> Circuit Description

Circuit Description

Mass Airflow (MAF) sensor measures amount of air entering engine at a given time to determine fuel delivery. MAF sensor information is used for fuel delivery calculations. MAF sensor produces a frequency signal which can be monitored with a scan tool. If detected MAF frequency is 1100 Hertz (Hz) or greater for more than one second, DTC P0103 will set.

For duplication of DTC, ensure engine is running, engine speed is greater than 300 RPM, and system voltage is greater than 8 volts.

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