Code 41 - Air/Fuel Learning Control
Ensure fuel injectors, mass airflow sensor, engine coolant temperature sensor, throttle position sensor, oxygen 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
- CODE 32 - OXYGEN SENSOR (O2S)
Repair as necessary. If systems are okay, repair ECM harness connector or replace ECM.