ObdII P1123 is a error refer to Air/fuel controller
OBDII P1123 Fuel Trim Additive, System Too Rich
the obdII P1123 is a error refer to Air/fuel controller
OBDII P1123 Fuel Trim Additive, System Too Rich
the following info is a copy/paste of HMA service:
PRIMARY COMPONENT:
Air/Fuel Control System
SECONDARY SENSOR(S):
Mass Air Flow (MAF) Sensor
Throttle Position (TP) Sensor
Intake Air Temperature (IAT) Sensor
Engine Coolant Temperature (ECT) Sensor
Oxygen Sensors
FAILURE CONDITIONS
If
the air/fuel mixture at idle is too rich for more than 30 seconds
during two back-to-back trips, this code will be set and the
Malfunction Indicator Light (MIL) will be turned on.
Details:
The code will be triggered if the following conditions are met:
Long term fuel trim value (additive) is less than -0.75 ms (-15% to -20%) for 30 seconds or more
Engine speed is less than 880 RPM (1000 RPM, 2.0L Tiburon)
Mass air flow rate is less than 6.1 g/s (7.5 g/s, 2.0L Tiburon)
Engine coolant temperature is greater than 158°F (70°C) [176°F (80°C), Accent]
Engine in closed loop operation
No canister purge occurring
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