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Home >> Mazda >> 2024 >> CX-90 PHEV Preferred >> Repair and Diagnosis >> External Pages >> Different car >> Section 146 (Engine Control System (VIN Y)) >> Mass Air Flow (MAF) Sensor Inspection >> Function inspection

Function inspection

WARNING: This page is about a different car, the 2025 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.
  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 Y)] .) (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 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)