Kia Niro: Engine Control System / Mass Air Flow Sensor (MAFS) Description and operation

Kia Niro 2017 (DE HEV) Service Manual / Engine Control/Fuel System / Engine Control System / Mass Air Flow Sensor (MAFS) Description and operation

Description

MAFS uses a sensing element made of a hot-film to measure the mass of intake air entering the engine and to send the signal to the ECM.

A large amount of intake air represents acceleration or high load conditions while a small amount of intake air represents deceleration or idle.

The ECM uses this information to control the EGR solenoid valve and correct the fuel amount.

Manifold Absolute Pressure Sensor (MAPS) Troubleshooting
Signal Waveform ...

Mass Air Flow Sensor (MAFS) Schematic diagrams
Circuit Diagram Harness Connector ...

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