Code 41 - Air/Fuel Ratio Control System

NOTE: Refer to illustration for ECU connector and terminal identification. See Figure .

Ensure fuel injectors, airflow sensor, coolant temperature sensor, throttle sensor, O2 sensor and fuel pressure are operating within specifications. See CODES 14, 15, 16 & 17, FUEL INJECTOR; CODE 23, AIRFLOW SENSOR; CODE 21, COOLANT TEMPERATURE SENSOR; CODE 31, THROTTLE SENSOR; and CODE 32, O2 SENSOR. Repair as necessary. If systems are okay, repair ECU harness or connector. If harness and connector are okay, replace ECU.