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Home >> Saab >> 2001 >> 9-5 Base, 4D Sedan, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Fault Code Diagnosis >> P0102: Mass Air Flow Circuit. Low Input. >> Diagnostic Help

Diagnostic Help

The mass air flow sensor is sending pulses to the control module but the frequency is too low. Consequently, the sensor is powered and is in contact with the control module input. In most cases, the trouble code indicates an internal fault in the sensor but a major leak between the sensor and the throttle, i.e. a disconnected sensor can also generate it.

Functions in the diagnostic tool related to the fault are:

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