Mass Air Flow Sensor Malfunction

MAFS Malfunction Table:

OPERATION
If the mass air flow sensor output voltage is below the specified value, the ECCS Control Module senses a mass air flow sensor malefaction. In the case of a malfunction, the throttle position sensor substitutes for the mass air flow sensor.
Although the mass air flow sensor is malfunctioning, it is possible to start the engine and drive the vehicle. But engine speed will not rise more than 2,000 rpm in order to inform the driver of fail-safe system operation while driving.

CANCELLATION
Activation of the fail-safe system is canceled each time the ignition switch is turned OFF. The system is reactivated if all of the activating conditions are satisfied after turning the ignition switch from OFF to ON.