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Home >> Nissan-Datsun >> 1987 >> Sentra Base >> Repair and Diagnosis >> Engine Performance >> System >> ECC CEC System >> Fail-Safe System Control Operation >> Airflow Meter

Airflow Meter

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If airflow meter output voltage is less than or greater than the preprogrammed valve, the ECU senses an airflow meter malfunction. The ECU then temporarily takes its driving conditions information from the throttle sensor. During this period of time, the ECU limits the RPM of the vehicle to a predetermined amount. This serves to alert the vehicles driver that the vehicle is driving under fail-safe conditions and needs attention.