With GST

Start engine and warm it up to normal operating temperature.
Select "Service doller 01" with GST.
Check the mass air flow sensor signal with "Service doller 01".
Check for linear mass air flow sensor signal value rise in response to increases to about 4,000 RPM in engine speed.
If NG, go to "DIAGNOSTIC PROCEDURE ".

Fig 1: Malfunction B Chart

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