Voltage toggling signal from the exhaust O2 sensor for closed-loop fueling. Actuator Outputs (Engine Control)
The wiring configurations differ significantly based on the specific engine model found in the L9 series: wiring diagram daihatsu l9 ecu pinout
Connects to the Intake Air Temperature (IAT) sensor. Voltage toggling signal from the exhaust O2 sensor
Pulse-width modulated (PWM) signal controlling engine idle bypass air. wiring diagram daihatsu l9 ecu pinout
Check IGF (A12) feedback loop to the ECU.