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DTC P0102, P0103 MAF SENSOR EC-143 [KA24DE] C D E F G H I J K L M A EC DTC P0102, P0103 MAF SENSOR PFP:22680 Component Description UBS00D2I The mass air flow sensor is placed in the stream of intake air. It mea- CONSULT-II Reference Value in Data Monitor Mode UBS00D2J Specification data are reference values. On Board Diagnosis Logic UBS00D2K These self-diagnoses have the one trip detection logic. FAIL-SAFE MODE When the malfunction is detected, the ECM enters fail-safe mode and the MIL lights up. SEF893J MONITOR ITEM CONDITION SPECIFICATION MAS A/F SE-B1 ● Engine: After warming up ● Air conditioner switch: OFF ● Shift lever: P or N ● No-load Idle 0.9 - 1.8V 2,500 rpm 1.9 - 2.3V CAL/LD VALUE ● Engine: After warming up ● Air conditioner switch: OFF ● Shift lever: P or N ● No-load Idle 9.5 - 34.0% 2,500 rpm 13.9 - 24.9% MASS AIRFLOW ● Engine: After warming up ● Air conditioner switch: OFF ● Shift lever: P or N ● No-load Idle 0.9 - 5.8 g·m/s 2,500 rpm 7.5 - 13.2 g·m/s DTC No. Trouble diagnosis name DTC detecting condition Possible cause P0102 Mass air flow sensor An excessively low voltage from the sensor is ● Harness or connectors ● Intake air leaks ● Mass air flow sensor P0103 Mass air flow sensor An excessively high voltage from the sensor is ● Harness or connectors ● Mass air flow sensor Detected items Engine operating condition in fail-safe mode Mass air flow sensor circuit Engine speed will not rise more than 2,400 rpm due to the fuel cut. |