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Home >> Mazda >> 2018 >> 6 Signature >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (VIN Y) >> 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 .) (See PCM INSPECTION .)
  4. Compare the voltage and flow rate indications for the PID MAF with the standard in the table indicated below.
    • If they do not match the standard, perform the voltage inspection. (See Voltage Inspection .)

Standard 

VOLTAGE SPECIFICATION

MAF Remarks
V   g/s {lb/min}
Approx. 0.72 0.65 {0.086} Ignition switched ON (engine off)
Approx. 0.86 2.78 {0.368} Idle (after warm up)
Approx. 1.14 7.74 {1.02} Racing (Engine speed: 2, 000 rpm)