EGR Valve

Using a hand-held vacuum pump, apply vacuum to EGR valve diaphragm. See Fig 1 . Replace EGR valve if pintle does not open.

Fig 1: Cross-Sectional View Of Typical EGR Valve

Courtesy of NISSAN MOTOR CO., U.S.A.

NOTE: On some EGR control solenoids, port "C" may be a vent that is capped with a filter. Also, if solenoid does not respond as specified, perform test again, considering port "A" as port "B" and vice versa.