With GST

Install vacuum gauge between EGRC-BPT valve and EGR valve as shown in the illustration.
Lift up vehicle.
Start engine and shift to 1st gear position.
Check vacuum gauge while keeping engine speed at 2, 00 to 2, 00 RPM.
Vacuum should be 0 to -20 kPa (0 to -150 mmHg, 0 to -5.91 inHg).

If NG, go to Diagnostic Procedure .

If OK, go to next step.
Check rubber tube between intake manifold collector, EGRC solenoid valve, EGR valve and EGRC-BPT valve for misconception, cracks or blockages.

Fig 1: Installing Vacuum Gauge Between EGRC-BPT Valve And EGR Valve
Courtesy of NISSAN MOTOR CO., U.S.A.
If NG, go to Diagnostic Procedure .