With GST

WARNING: This page is about a different variant/trim than selected.

Start engine and warm it up to normal operating temperature.
Set voltmeter probes between ECM terminal 91 [HO2S1 (B1) signal] or 92 [HO2S1 (B2) signal] and ground.
Check the following with engine speed held at 2, 000 RPM constant under no-load.
- The voltage should go above 0.70V at least once.
- The voltage should go below 0.21 V at least once.
If NG, go to "DIAGNOSTIC PROCEDURE ".

Fig 1: Checking Voltage Between Terminal 91 Or 92 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.