Code 41: Air/Fuel Learning Control

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

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