With GST

WARNING: This page is about a different car, the 2005 Nissan 350Z. However, it is still accessible from the selected car via links, so may be relevant.

Start engine and warm it up to normal operating temperature.
Select Service $01 with GST.
Check the mass air flow sensor signal with Service $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: Displaying Overall Function
Courtesy of NISSAN MOTOR CO., U.S.A.