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: GST Display - MAF 14.1gm/sec

Courtesy of NISSAN MOTOR CO., U.S.A.