April 5, 2026: LEMON Manuals is launched! Read the announcement.

With GST

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: MAF Display
Courtesy of NISSAN MOTOR CO., U.S.A.