Procedure For Malfunction B

With GST 

1. Turn ignition switch ON.
2. Start engine and warm it up to normal operating temperature.
3. Select "Service $01" with GST.
4. Check the mass air flow sensor signal with "Service $01".
   Fig 1: Displaying MAF Mode - Service $01 With GST

   Courtesy of NISSAN MOTOR CO., U.S.A.
5. Check for linear mass air flow rise in response to increases to about 4, 000 rpm in engine speed.
6. If NG, go to "DIAGNOSTIC PROCEDURE ".