Maxima V6-2960cc 3.0L SOHC MFI (VG30E) (1990)
EGR Valve: Component Tests and General Diagnostics
Fig. 156 EGR Test
EXHAUST GAS RECIRCULATION VALVE
Apply vacuum to fitting on valve.
^If the diaphragm does not hold vacuum or valve spring does not lift replace valve.
Fig. 161 Solenoid Test
EGR SOLENOID FUNCTION TEST
Apply voltage to the solenoid terminals as shown above and check air passages for continuity.
CAUTION: Reversing polarity will damage the solenoid.
^Replace solenoid if it fails above test.