Hyundai Kia Air Flow Sensor Change

Supported coding features by HiCOM diagnostic tool https://www.obdtester.com/hicom

Air Flow Sensor (MAF) Change

What it does

• Resets airflow-related adaptation values in the ECU
• Allows the ECU to adapt to the new MAF sensor
• Ensures correct air-fuel mixture calculation

When it is required

• After replacing the MAF sensor
• After repairing the intake system
• When airflow-related fault codes are present
• When drivability issues occur:
• Rough idle
• Hesitation
• Poor acceleration

Conditions that must be met

• New MAF sensor correctly installed
• Intake system sealed and leak-free
• Air filter properly fitted
• No active intake or sensor fault codes
• Stable battery voltage

What happens during the procedure

• ECU clears learned airflow corrections
• Resets:
• Fuel trim adaptations
• Idle airflow values
• Starts learning new airflow data from the sensor

If reset is not performed

• Incorrect fuel mixture
• Increased fuel consumption
• Engine warning light may remain active
• Reduced engine performance

After sensor change

• Let engine idle for a few minutes
• Perform a short test drive
• Monitor airflow and fuel trim values
• Confirm no airflow-related faults return

Coverage in HiCOM