Rick's Free Auto Repair Advice

Posts Tagged: MAF High input

P0103 trouble code

What causes a P0103 trouble code? P0103 fuel volume regulator control circuit high A P0103 trouble code can be defined two ways: P0103 fuel volume regulator control circuit high or P0103 – Mass Air Flow (MAF) Circuit High Input. The Mass Airflow Sensor (MAF) measures the temperature and volume by determining it’s density. Using the air density value, the computer can then determine how much fuel to add to the air. There are two basic MAF sensor designs — analog and digital. The digital style usually uses three wires—12volt power, … Read More


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