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Home >> Hyundai >> 2020 >> Sonata SEL >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Engine Control System - 1.6L (Except HEV)) >> Mass Air Flow Sensor (MAFS) >> Repair Procedures >> Inspection

Repair Procedures: Inspection

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  1. Using diagnostic tool, inspect the signal waveform of the MAFS at idle and acceleration.

    Specification:  Refer to "Specifications "

  2. Check the MAFS visually.
    • Mounting direction correct.
    • Any contamination, corrosion or damage on connector.
    • Air cleaner's clogging or wet.
    • MAFS cylinder's deforming or blocking by any foreign material.
  3. Check any leakage on intake system and intercooler system.