Open Loop
In this mode, the MCU determines the air/fuel ratio based upon engine operation, rather than oxygen sensor input signals. The stepper motor is controlled by MCU to provide preprogrammed amount of air for correct air/fuel mixture.
In this mode, the MCU determines the air/fuel ratio based upon engine operation, rather than oxygen sensor input signals. The stepper motor is controlled by MCU to provide preprogrammed amount of air for correct air/fuel mixture.