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Home >> Mazda >> 2025 >> CX-5 S Select >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (VIN L) >> Mass Air Flow (MAF) Sensor Inspection >> Function Inspection
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Function Inspection

  1. Connect the M-MDS to the DLC-2.
  2. Switch the ignition ON (engine off).
  3. Display the PID MAF. (See ON-BOARD DIAGNOSTIC TEST [PCM (VIN L (WITHOUT CYLINDER DEACTIVATION))] .) (See PCM INSPECTION [VIN L (WITHOUT CYLINDER DEACTIVATION)] .)
  4. Compare the voltage and flow rate indications for the PID MAF with the standard in the table indicated below.
    STANDARD SPECIFICATION

    MAF Remarks
    V g/s {lb/min}
    Approx. 1.69 0.00 {0.000} Ignition switched ON (engine off)
    Approx. 1.89 2.50 {0.331} Idle (after warm up)
    Approx. 2.02 3.80 {0.503} Racing (Engine speed: 2, 000 rpm)