LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Kia >> 2021 >> Forte GT, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Engine Control System - 2.0L) >> Mass Air Flow Sensor (MAFS) >> Description And Operation >> Description
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Description And Operation: Description

WARNING: This page is about a different variant/trim than selected.

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.

G13307115Courtesy of KIA MOTORS AMERICA, INC.