Testing and Inspection of Mass Air Flow (MAF) & Intake Air Temperature (IAT) Sensors
MAF sensor inspection
1. Remove MAF and IAT sensor.
2. Connect battery (2) and voltmeter (3) to MAF and IAT sensor (1) as shown in figure.
3. Check that voltage varies depending on amount of blowing air as the following graph. If faulty condition is found, replace MAF and IAT sensor.
