With CONSULT-II

WARNING: This page is about a different car, the 2004 Nissan Quest. 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.
Turn ignition switch OFF and wait at least 10 seconds.
Turn ignition switch ON and select "SELF-LEARNING CONT" in "WORK SUPPORT" mode with CONSULT-II.
Clear the self-learning control coefficient by touching "CLEAR".
Select "DATA MONITOR" mode with CONSULT-II.

Fig 1: Displaying Work Support Screen
Courtesy of NISSAN MOTOR CO., U.S.A.
Start engine again and let it idle for at least 10 minutes.
The 1st trip DTC P0171 or P0174 should be detected at this stage, if a malfunction exists. If so, go to DIAGNOSTIC PROCEDURE .
If it is difficult to start engine at step 6, the fuel injection system has a malfunction, too.
Crank engine while depressing accelerator pedal. If engine starts, go to DIAGNOSTIC PROCEDURE . If engine does not start, check exhaust and intake air leak visually.