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Home >> Kia >> 2023 >> Niro Plug-In Hybrid EX >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (PHEV) >> Air Flow Sensor (AFS) >> On Vehicle Inspection >> Unit Inspection
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Unit Inspection

WARNING:
  • When working on the high voltage system, the work should be performed by technicians who have completed the relevant training. A lack of understanding of the high voltage system can lead to serious accidents due to electric shock or short circuit.
  • When working on the high voltage system or related components, be sure to observe and be aware of the "HIGH VOLTAGE SYSTEM GENERAL SAFETY INFORMATION AND CAUTION ". If not, it may cause serious accidents due to electric shock or short circuit.
  • When working on high voltage system, make sure to check the PERSONAL PROTECTIVE EQUIPMENT (PPE) and HIGH VOLTAGE SHUT-OFF PROCEDURES .
  1. Check the Air Flow Sensor (AFS) visually.
    1. Installation status
    2. Any contamination, corrosion or damage on connector.
    3. Air cleaner's clogging or wet.
    4. AFS cylinder's deforming or blocking by any foreign material.
    5. Check for the contamination such as an oil contamination in the AFS inner cylinder.