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MASS AIR FLOW (MAF) SENSOR INSPECTION [SKYACTIV-X 2.0]

MASS AIR FLOW (MAF) SENSOR INSPECTION [SKYACTIV-X 2.0]


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Visual Inspection

1.  Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(E)].)

2.  Remove the MAF sensor/IAT sensor No.1. (See MASS AIR FLOW (MAF) SENSOR/INTAKE AIR TEMPERATURE (IAT) SENSOR NO.1 REMOVAL/INSTALLATION [SKYACTIV-X 2.0].)

3.  Visually inspect the MAF sensor for the following:

•  Damage, cracks, soiling
•  Rusted sensor terminal
•  Bent sensor terminal
―  If there is any malfunction, repair or replace the MAF sensor/IAT sensor No.1. (See MASS AIR FLOW (MAF) SENSOR/INTAKE AIR TEMPERATURE (IAT) SENSOR NO.1 REMOVAL/INSTALLATION [SKYACTIV-X 2.0].)


Function Inspection

1.  Connect the M-MDS to the DLC-2.

2.  Switch the ignition ON (engine off).

3.  Display the PID MAF. (See PID/DATA MONITOR INSPECTION.)(See PID/DATA MONITOR TABLE [PCM (SKYACTIV-X)].)

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, replace the MAF sensor/IAT sensor No.1. (See MASS AIR FLOW (MAF) SENSOR/INTAKE AIR TEMPERATURE (IAT) SENSOR NO.1 REMOVAL/INSTALLATION [SKYACTIV-X 2.0].)

Standard

MAF

Remarks

V

g/s {lb/min}

Approx. 1.69
0.00 {0.000}
Ignition switched ON (engine off)
Approx. 1.89
1.77 {0.234}
Idle (after warm up)
Approx. 2.02
5.02 {0.664}
Racing (Engine speed: 2,000 rpm)