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