Component Function Check

With GST 

1. Start engine and warm it up to normal operating temperature.
2. Select Service $01 with GST.
3. Check the mass air flow sensor signal with Service $01.
4. Check for linear mass air flow sensor signal value rise in response to increases to about 4, 000 rpm in engine speed.

Is the inspection result normal? 

YES >> INSPECTION END

NO >> Go to "Diagnosis Procedure ".

Fig 1: Identifying MAF Sensor Signal Value Display

Courtesy of NISSAN NORTH AMERICA, INC.